27976746745 has 64 divisors (see below), whose sum is σ = 38810016000. Its totient is φ = 19217350656.

The previous prime is 27976746691. The next prime is 27976746781. The reversal of 27976746745 is 54764767972.

It is not a de Polignac number, because 27976746745 - 2⁷ = 27976746617 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30114441 + ... + 30115369.

It is an arithmetic number, because the mean of its divisors is an integer number (606406500).

Almost surely, 2^27976746745 is an apocalyptic number.

It is an amenable number.

27976746745 is a deficient number, since it is larger than the sum of its proper divisors (10833269255).

27976746745 is a wasteful number, since it uses less digits than its factorization.

27976746745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642.

The product of its digits is 124467840, while the sum is 64.

The spelling of 27976746745 in words is "twenty-seven billion, nine hundred seventy-six million, seven hundred forty-six thousand, seven hundred forty-five".