1377956144 has 20 divisors (see below), whose sum is σ = 2671636296. Its totient is φ = 688501632.

The previous prime is 1377956137. The next prime is 1377956159. The reversal of 1377956144 is 4416597731.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

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, 5309 + ... + 52764.

Almost surely, 2^1377956144 is an apocalyptic number.

It is an amenable number.

1377956144 is a deficient number, since it is larger than the sum of its proper divisors (1293680152).

1377956144 is a wasteful number, since it uses less digits than its factorization.

1377956144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59564 (or 59558 counting only the distinct ones).

The product of its digits is 635040, while the sum is 47.

The square root of 1377956144 is about 37120.8316717177. The cubic root of 1377956144 is about 1112.7863725007.

The spelling of 1377956144 in words is "one billion, three hundred seventy-seven million, nine hundred fifty-six thousand, one hundred forty-four".