27977442725408 has 48 divisors (see below), whose sum is σ = 63622500115104. Its totient is φ = 11968959452160.

The previous prime is 27977442725383. The next prime is 27977442725413. The reversal of 27977442725408 is 80452724477972.

It is a Harshad number since it is a multiple of its sum of digits (68).

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, 2337681410 + ... + 2337693377.

It is an arithmetic number, because the mean of its divisors is an integer number (1325468752398).

Almost surely, 2^{27977442725408} is an apocalyptic number.

It is an amenable number.

27977442725408 is an abundant number, since it is smaller than the sum of its proper divisors (35645057389696).

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

27977442725408 is a wasteful number, since it uses less digits than its factorization.

27977442725408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4675374825 (or 4675374817 counting only the distinct ones).

The product of its (nonzero) digits is 442552320, while the sum is 68.

The spelling of 27977442725408 in words is "twenty-seven trillion, nine hundred seventy-seven billion, four hundred forty-two million, seven hundred twenty-five thousand, four hundred eight".