27778002532 has 24 divisors (see below), whose sum is σ = 56180234880. Its totient is φ = 11771094720.

The previous prime is 27778002523. The next prime is 27778002547. The reversal of 27778002532 is 23520087772.

It is a super-2 number, since 2×27778002532² (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, 5570944 + ... + 5575927.

It is an arithmetic number, because the mean of its divisors is an integer number (2340843120).

Almost surely, 2^27778002532 is an apocalyptic number.

It is an amenable number.

27778002532 is an abundant number, since it is smaller than the sum of its proper divisors (28402232348).

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

27778002532 is a wasteful number, since it uses less digits than its factorization.

27778002532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11146971 (or 11146969 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 43.

The spelling of 27778002532 in words is "twenty-seven billion, seven hundred seventy-eight million, two thousand, five hundred thirty-two".