27907571690 has 16 divisors (see below), whose sum is σ = 50941146240. Its totient is φ = 11005802640.

The previous prime is 27907571633. The next prime is 27907571701. The reversal of 27907571690 is 9617570972.

It is a super-2 number, since 2×27907571690² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19652510 + ... + 19653929.

It is an arithmetic number, because the mean of its divisors is an integer number (3183821640).

Almost surely, 2^27907571690 is an apocalyptic number.

27907571690 is a deficient number, since it is larger than the sum of its proper divisors (23033574550).

27907571690 is a wasteful number, since it uses less digits than its factorization.

27907571690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39306517.

The product of its (nonzero) digits is 1666980, while the sum is 53.

The spelling of 27907571690 in words is "twenty-seven billion, nine hundred seven million, five hundred seventy-one thousand, six hundred ninety".