1377741564 has 36 divisors (see below), whose sum is σ = 3500320824. Its totient is φ = 456913632.

The previous prime is 1377741553. The next prime is 1377741571. The reversal of 1377741564 is 4651477731.

1377741564 is a `hidden beast` number, since 13 + 7 + 7 + 74 + 1 + 564 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90042 + ... + 104225.

It is an arithmetic number, because the mean of its divisors is an integer number (97231134).

Almost surely, 2^1377741564 is an apocalyptic number.

It is an amenable number.

1377741564 is an abundant number, since it is smaller than the sum of its proper divisors (2122579260).

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

1377741564 is a wasteful number, since it uses less digits than its factorization.

1377741564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194474 (or 194469 counting only the distinct ones).

The product of its digits is 493920, while the sum is 45.

The square root of 1377741564 is about 37117.9412683408. The cubic root of 1377741564 is about 1112.7286072139.

The spelling of 1377741564 in words is "one billion, three hundred seventy-seven million, seven hundred forty-one thousand, five hundred sixty-four".