1377406377 has 12 divisors (see below), whose sum is σ = 2063275760. Its totient is φ = 918270756.

The previous prime is 1377406367. The next prime is 1377406379. The reversal of 1377406377 is 7736047731.

1377406377 is a `hidden beast` number, since 1 + 3 + 7 + 7 + 4 + 0 + 637 + 7 = 666.

It is not a de Polignac number, because 1377406377 - 2⁴ = 1377406361 is a prime.

It is a super-2 number, since 2×1377406377² = 3794496654800532258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1377406379) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2833927 + ... + 2834412.

Almost surely, 2^1377406377 is an apocalyptic number.

It is an amenable number.

1377406377 is a deficient number, since it is larger than the sum of its proper divisors (685869383).

1377406377 is an frugal number, since it uses more digits than its factorization.

1377406377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5668354 (or 5668342 counting only the distinct ones).

The product of its (nonzero) digits is 518616, while the sum is 45.

The square root of 1377406377 is about 37113.4258321702. The cubic root of 1377406377 is about 1112.6383623223.

The spelling of 1377406377 in words is "one billion, three hundred seventy-seven million, four hundred six thousand, three hundred seventy-seven".