695590819840872 has 48 divisors (see below), whose sum is σ = 1886255532628740. Its totient is φ = 231572686134528.

The previous prime is 695590819840841. The next prime is 695590819840883. The reversal of 695590819840872 is 278048918095596.

695590819840872 is a `hidden beast` number, since 6 + 9 + 5 + 59 + 0 + 8 + 1 + 98 + 408 + 72 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 674262549832356 + 21328270008516 = 25966566^2 + 4618254^2 .

It is a junction number, because it is equal to n+sod(n) for n = 695590819840791 and 695590819840800.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6060785533 + ... + 6060900300.

Almost surely, 2^{695590819840872} is an apocalyptic number.

It is an amenable number.

695590819840872 is an abundant number, since it is smaller than the sum of its proper divisors (1190664712787868).

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

695590819840872 is a wasteful number, since it uses less digits than its factorization.

695590819840872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12121686642 (or 12121686635 counting only the distinct ones).

The product of its (nonzero) digits is 3135283200, while the sum is 81.

The spelling of 695590819840872 in words is "six hundred ninety-five trillion, five hundred ninety billion, eight hundred nineteen million, eight hundred forty thousand, eight hundred seventy-two".