1377497472 has 64 divisors (see below), whose sum is σ = 3940451760. Its totient is φ = 423843840.

The previous prime is 1377497453. The next prime is 1377497491. The reversal of 1377497472 is 2747947731.

It is an interprime number because it is at equal distance from previous prime (1377497453) and next prime (1377497491).

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132979 + ... + 142962.

Almost surely, 2^1377497472 is an apocalyptic number.

1377497472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1377497472 is an abundant number, since it is smaller than the sum of its proper divisors (2562954288).

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

1377497472 is a wasteful number, since it uses less digits than its factorization.

1377497472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275971 (or 275959 counting only the distinct ones).

The product of its digits is 2074464, while the sum is 51.

The square root of 1377497472 is about 37114.6530631771. The cubic root of 1377497472 is about 1112.6628899560.

The spelling of 1377497472 in words is "one billion, three hundred seventy-seven million, four hundred ninety-seven thousand, four hundred seventy-two".