27057789690 has 32 divisors (see below), whose sum is σ = 66522568896. Its totient is φ = 7039424640.

The previous prime is 27057789683. The next prime is 27057789719. The reversal of 27057789690 is 9698775072.

It is a super-2 number, since 2×27057789690² (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 15 ways as a sum of consecutive naturals, for example, 10997872 + ... + 11000331.

It is an arithmetic number, because the mean of its divisors is an integer number (2078830278).

Almost surely, 2^27057789690 is an apocalyptic number.

27057789690 is an abundant number, since it is smaller than the sum of its proper divisors (39464779206).

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

27057789690 is a wasteful number, since it uses less digits than its factorization.

27057789690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21998254.

The product of its (nonzero) digits is 13335840, while the sum is 60.

The spelling of 27057789690 in words is "twenty-seven billion, fifty-seven million, seven hundred eighty-nine thousand, six hundred ninety".