1377899372 has 6 divisors (see below), whose sum is σ = 2411323908. Its totient is φ = 688949684.

The previous prime is 1377899371. The next prime is 1377899381. The reversal of 1377899372 is 2739987731.

It is not an unprimeable number, because it can be changed into a prime (1377899371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172237418 + ... + 172237425.

It is an arithmetic number, because the mean of its divisors is an integer number (401887318).

Almost surely, 2^1377899372 is an apocalyptic number.

It is an amenable number.

1377899372 is a deficient number, since it is larger than the sum of its proper divisors (1033424536).

1377899372 is a wasteful number, since it uses less digits than its factorization.

1377899372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344474847 (or 344474845 counting only the distinct ones).

The product of its digits is 4000752, while the sum is 56.

The square root of 1377899372 is about 37120.0669719223. The cubic root of 1377899372 is about 1112.7710899689.

The spelling of 1377899372 in words is "one billion, three hundred seventy-seven million, eight hundred ninety-nine thousand, three hundred seventy-two".