307861538634 has 24 divisors (see below), whose sum is σ = 718343590692. Its totient is φ = 94726627200.

The previous prime is 307861538617. The next prime is 307861538671. The reversal of 307861538634 is 436835168703.

307861538634 is a `hidden beast` number, since 3 + 0 + 78 + 6 + 1 + 538 + 6 + 34 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 307362686409 + 498852225 = 554403^2 + 22335^2 .

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, 657823567 + ... + 657824034.

Almost surely, 2^307861538634 is an apocalyptic number.

307861538634 is an abundant number, since it is smaller than the sum of its proper divisors (410482052058).

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

307861538634 is a wasteful number, since it uses less digits than its factorization.

307861538634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315647622 (or 1315647619 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 307861538634 in words is "three hundred seven billion, eight hundred sixty-one million, five hundred thirty-eight thousand, six hundred thirty-four".