816031263460 has 192 divisors, whose sum is σ = 2002296360960. Its totient is φ = 273611980800.

The previous prime is 816031263431. The next prime is 816031263521. The reversal of 816031263460 is 64362130618.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 431990196 + ... + 431992084.

It is an arithmetic number, because the mean of its divisors is an integer number (10428626880).

Almost surely, 2^816031263460 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 816031263460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1001148180480).

816031263460 is an abundant number, since it is smaller than the sum of its proper divisors (1186265097500).

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

816031263460 is a wasteful number, since it uses less digits than its factorization.

816031263460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2366 (or 2364 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 816031263460 in words is "eight hundred sixteen billion, thirty-one million, two hundred sixty-three thousand, four hundred sixty".