2131276777476 has 96 divisors (see below), whose sum is σ = 6269741936640. Its totient is φ = 547358380800.

The previous prime is 2131276777447. The next prime is 2131276777561. The reversal of 2131276777476 is 6747776721312.

It is a nude number because it is divisible by every one of its digits.

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, 12876060 + ... + 13040531.

It is an arithmetic number, because the mean of its divisors is an integer number (65309811840).

Almost surely, 2^{2131276777476} is an apocalyptic number.

It is an amenable number.

2131276777476 is an abundant number, since it is smaller than the sum of its proper divisors (4138465159164).

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

2131276777476 is a wasteful number, since it uses less digits than its factorization.

2131276777476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25916705 (or 25916703 counting only the distinct ones).

The product of its digits is 29042496, while the sum is 60.

The spelling of 2131276777476 in words is "two trillion, one hundred thirty-one billion, two hundred seventy-six million, seven hundred seventy-seven thousand, four hundred seventy-six".