1377653356 has 12 divisors (see below), whose sum is σ = 2515714992. Its totient is φ = 658877648.

The previous prime is 1377653353. The next prime is 1377653411. The reversal of 1377653356 is 6533567731.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (1377653351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7487155 + ... + 7487338.

It is an arithmetic number, because the mean of its divisors is an integer number (209642916).

Almost surely, 2^1377653356 is an apocalyptic number.

It is an amenable number.

1377653356 is a deficient number, since it is larger than the sum of its proper divisors (1138061636).

1377653356 is a wasteful number, since it uses less digits than its factorization.

1377653356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14974520 (or 14974518 counting only the distinct ones).

The product of its digits is 1190700, while the sum is 46.

The square root of 1377653356 is about 37116.7530368700. The cubic root of 1377653356 is about 1112.7048597365.

The spelling of 1377653356 in words is "one billion, three hundred seventy-seven million, six hundred fifty-three thousand, three hundred fifty-six".