797628792240 has 1600 divisors, whose sum is σ = 3523571048448. Its totient is φ = 163034726400.

The previous prime is 797628792239. The next prime is 797628792241. The reversal of 797628792240 is 42297826797.

It is an interprime number because it is at equal distance from previous prime (797628792239) and next prime (797628792241).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (797628792241) by changing a digit.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 1458187647 + ... + 1458188193.

Almost surely, 2^797628792240 is an apocalyptic number.

797628792240 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 797628792240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1761785524224).

797628792240 is an abundant number, since it is smaller than the sum of its proper divisors (2725942256208).

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

797628792240 is a wasteful number, since it uses less digits than its factorization.

797628792240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 63.

The spelling of 797628792240 in words is "seven hundred ninety-seven billion, six hundred twenty-eight million, seven hundred ninety-two thousand, two hundred forty".