1377657468 has 72 divisors (see below), whose sum is σ = 3803632560. Its totient is φ = 416962560.

The previous prime is 1377657443. The next prime is 1377657527. The reversal of 1377657468 is 8647567731.

1377657468 is a `hidden beast` number, since 1 + 3 + 7 + 7 + 6 + 574 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 437596 + ... + 440732.

It is an arithmetic number, because the mean of its divisors is an integer number (52828230).

Almost surely, 2^1377657468 is an apocalyptic number.

1377657468 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1377657468 is an abundant number, since it is smaller than the sum of its proper divisors (2425975092).

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

1377657468 is a wasteful number, since it uses less digits than its factorization.

1377657468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4267 (or 4262 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 54.

The square root of 1377657468 is about 37116.8084296050. The cubic root of 1377657468 is about 1112.7059667973.

The spelling of 1377657468 in words is "one billion, three hundred seventy-seven million, six hundred fifty-seven thousand, four hundred sixty-eight".