2672787478564 has 18 divisors (see below), whose sum is σ = 5441031653190. Its totient is φ = 1145480347872.

The previous prime is 2672787478549. The next prime is 2672787478597. The reversal of 2672787478564 is 4658747872762.

It can be written as a sum of positive squares in only one way, i.e., 1843973884900 + 828813593664 = 1357930^2 + 910392^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6818335209 + ... + 6818335600.

Almost surely, 2^{2672787478564} is an apocalyptic number.

It is an amenable number.

2672787478564 is an abundant number, since it is smaller than the sum of its proper divisors (2768244174626).

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

2672787478564 is a wasteful number, since it uses less digits than its factorization.

2672787478564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13636670827 (or 13636670818 counting only the distinct ones).

The product of its digits is 1770209280, while the sum is 73.

The spelling of 2672787478564 in words is "two trillion, six hundred seventy-two billion, seven hundred eighty-seven million, four hundred seventy-eight thousand, five hundred sixty-four".