811698048 has 384 divisors, whose sum is σ = 2932899840. Its totient is φ = 210124800.

The previous prime is 811698047. The next prime is 811698049. The reversal of 811698048 is 840896118.

It is an interprime number because it is at equal distance from previous prime (811698047) and next prime (811698049).

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×811698048² = 1317707442254020608, which contains 22 as substring.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 811697994 and 811698012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811698047) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4249633 + ... + 4249823.

It is an arithmetic number, because the mean of its divisors is an integer number (7637760).

Almost surely, 2^811698048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 811698048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1466449920).

811698048 is an abundant number, since it is smaller than the sum of its proper divisors (2121201792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

811698048 is a wasteful number, since it uses less digits than its factorization.

811698048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 811698048 is about 28490.3149859737. The cubic root of 811698048 is about 932.8206835490.

The spelling of 811698048 in words is "eight hundred eleven million, six hundred ninety-eight thousand, forty-eight".