696494049840 has 160 divisors (see below), whose sum is σ = 2416295347200. Its totient is φ = 184395467520.

The previous prime is 696494049767. The next prime is 696494049863. The reversal of 696494049840 is 48940494696.

696494049840 is a `hidden beast` number, since 6 + 9 + 64 + 9 + 40 + 498 + 40 = 666.

It is a super-2 number, since 2×696494049840² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 859656 + ... + 1460135.

It is an arithmetic number, because the mean of its divisors is an integer number (15101845920).

Almost surely, 2^696494049840 is an apocalyptic number.

696494049840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

696494049840 is an abundant number, since it is smaller than the sum of its proper divisors (1719801297360).

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

696494049840 is a wasteful number, since it uses less digits than its factorization.

696494049840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2319952 (or 2319940 counting only the distinct ones).

The product of its (nonzero) digits is 53747712, while the sum is 63.

The spelling of 696494049840 in words is "six hundred ninety-six billion, four hundred ninety-four million, forty-nine thousand, eight hundred forty".