1377675918 has 16 divisors (see below), whose sum is σ = 3061502160. Its totient is φ = 459225288.

The previous prime is 1377675907. The next prime is 1377675931. The reversal of 1377675918 is 8195767731.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 25512517 = 1377675918 / (1 + 3 + 7 + 7 + 6 + 7 + 5 + 9 + 1 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12756205 + ... + 12756312.

It is an arithmetic number, because the mean of its divisors is an integer number (191343885).

Almost surely, 2^1377675918 is an apocalyptic number.

1377675918 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1377675918 is an abundant number, since it is smaller than the sum of its proper divisors (1683826242).

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

1377675918 is a wasteful number, since it uses less digits than its factorization.

1377675918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25512528 (or 25512522 counting only the distinct ones).

The product of its digits is 2222640, while the sum is 54.

The square root of 1377675918 is about 37117.0569684613. The cubic root of 1377675918 is about 1112.7109340052.

The spelling of 1377675918 in words is "one billion, three hundred seventy-seven million, six hundred seventy-five thousand, nine hundred eighteen".