2731280164 has 12 divisors (see below), whose sum is σ = 4869924444. Its totient is φ = 1339873184.

The previous prime is 2731280147. The next prime is 2731280179. The reversal of 2731280164 is 4610821372.

It can be written as a sum of positive squares in 2 ways, for example, as 2116736064 + 614544100 = 46008^2 + 24790^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6441487 + ... + 6441910.

It is an arithmetic number, because the mean of its divisors is an integer number (405827037).

Almost surely, 2^2731280164 is an apocalyptic number.

It is an amenable number.

2731280164 is a deficient number, since it is larger than the sum of its proper divisors (2138644280).

2731280164 is a wasteful number, since it uses less digits than its factorization.

2731280164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12883454 (or 12883452 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 2731280164 is about 52261.6509880811. The cubic root of 2731280164 is about 1397.8334113816.

The spelling of 2731280164 in words is "two billion, seven hundred thirty-one million, two hundred eighty thousand, one hundred sixty-four".