695421037816974 has 128 divisors (see below), whose sum is σ = 1767768652615680. Its totient is φ = 198509502032352.

The previous prime is 695421037816961. The next prime is 695421037817017. The reversal of 695421037816974 is 479618730124596.

695421037816974 is a `hidden beast` number, since 6 + 9 + 5 + 4 + 21 + 0 + 378 + 169 + 74 = 666.

It is a super-2 number, since 2×695421037816974² (a number of 30 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6929007717 + ... + 6929108079.

It is an arithmetic number, because the mean of its divisors is an integer number (13810692598560).

It is a 2-persistent number, because it is pandigital, and so is 2⋅695421037816974 = 1390842075633948, but 3⋅695421037816974 = 2086263113450922 is not.

Almost surely, 2^{695421037816974} is an apocalyptic number.

695421037816974 is an abundant number, since it is smaller than the sum of its proper divisors (1072347614798706).

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

695421037816974 is a wasteful number, since it uses less digits than its factorization.

695421037816974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117011 (or 117005 counting only the distinct ones).

The product of its (nonzero) digits is 548674560, while the sum is 72.

The spelling of 695421037816974 in words is "six hundred ninety-five trillion, four hundred twenty-one billion, thirty-seven million, eight hundred sixteen thousand, nine hundred seventy-four".