1377461636 has 12 divisors (see below), whose sum is σ = 2410912140. Its totient is φ = 688629600.

The previous prime is 1377461629. The next prime is 1377461647. The reversal of 1377461636 is 6361647731.

It can be written as a sum of positive squares in 2 ways, for example, as 1358364736 + 19096900 = 36856^2 + 4370^2 .

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, 11150 + ... + 53658.

It is an arithmetic number, because the mean of its divisors is an integer number (200909345).

Almost surely, 2^1377461636 is an apocalyptic number.

It is an amenable number.

1377461636 is a deficient number, since it is larger than the sum of its proper divisors (1033450504).

1377461636 is a wasteful number, since it uses less digits than its factorization.

1377461636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50614 (or 50612 counting only the distinct ones).

The product of its digits is 381024, while the sum is 44.

The square root of 1377461636 is about 37114.1702857547. The cubic root of 1377461636 is about 1112.6532411221.

The spelling of 1377461636 in words is "one billion, three hundred seventy-seven million, four hundred sixty-one thousand, six hundred thirty-six".