1377659994 has 8 divisors (see below), whose sum is σ = 2755320000. Its totient is φ = 459219996.

The previous prime is 1377659977. The next prime is 1377660007. The reversal of 1377659994 is 4999567731.

It is a sphenic number, since it is the product of 3 distinct primes.

1377659994 is an admirable number.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

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, 114804994 + ... + 114805005.

It is an arithmetic number, because the mean of its divisors is an integer number (344415000).

Almost surely, 2^1377659994 is an apocalyptic number.

1377659994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1377659994 is a wasteful number, since it uses less digits than its factorization.

1377659994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229610004.

The product of its digits is 12859560, while the sum is 60.

The square root of 1377659994 is about 37116.8424572996. The cubic root of 1377659994 is about 1112.7066468631.

The spelling of 1377659994 in words is "one billion, three hundred seventy-seven million, six hundred fifty-nine thousand, nine hundred ninety-four".