27505554972 has 48 divisors (see below), whose sum is σ = 77208579840. Its totient is φ = 7445112192.

The previous prime is 27505554961. The next prime is 27505555009. The reversal of 27505554972 is 27945550572.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 8615433 + ... + 8618624.

It is an arithmetic number, because the mean of its divisors is an integer number (1608512080).

Almost surely, 2^27505554972 is an apocalyptic number.

It is an amenable number.

27505554972 is an abundant number, since it is smaller than the sum of its proper divisors (49703024868).

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

27505554972 is a wasteful number, since it uses less digits than its factorization.

27505554972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17234090 (or 17234088 counting only the distinct ones).

The product of its (nonzero) digits is 4410000, while the sum is 51.

The spelling of 27505554972 in words is "twenty-seven billion, five hundred five million, five hundred fifty-four thousand, nine hundred seventy-two".