27797780252628 has 96 divisors (see below), whose sum is σ = 74542842366720. Its totient is φ = 8952162094080.

The previous prime is 27797780252609. The next prime is 27797780252653. The reversal of 27797780252628 is 82625208779772.

27797780252628 is a `hidden beast` number, since 2 + 7 + 7 + 9 + 7 + 78 + 0 + 2 + 526 + 28 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30018325 + ... + 30930492.

It is an arithmetic number, because the mean of its divisors is an integer number (776487941320).

Almost surely, 2^{27797780252628} is an apocalyptic number.

It is an amenable number.

27797780252628 is an abundant number, since it is smaller than the sum of its proper divisors (46745062114092).

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

27797780252628 is a wasteful number, since it uses less digits than its factorization.

27797780252628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60948974 (or 60948966 counting only the distinct ones).

The product of its (nonzero) digits is 663828480, while the sum is 72.

The spelling of 27797780252628 in words is "twenty-seven trillion, seven hundred ninety-seven billion, seven hundred eighty million, two hundred fifty-two thousand, six hundred twenty-eight".