1377825888 has 48 divisors (see below), whose sum is σ = 3807155520. Its totient is φ = 435102336.

The previous prime is 1377825863. The next prime is 1377825893. The reversal of 1377825888 is 8885287731.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (57).

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, 375870 + ... + 379517.

It is an arithmetic number, because the mean of its divisors is an integer number (79315740).

Almost surely, 2^1377825888 is an apocalyptic number.

It is an amenable number.

1377825888 is an abundant number, since it is smaller than the sum of its proper divisors (2429329632).

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

1377825888 is a wasteful number, since it uses less digits than its factorization.

1377825888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755419 (or 755411 counting only the distinct ones).

The product of its digits is 6021120, while the sum is 57.

The square root of 1377825888 is about 37119.0771437006. The cubic root of 1377825888 is about 1112.7513080878.

The spelling of 1377825888 in words is "one billion, three hundred seventy-seven million, eight hundred twenty-five thousand, eight hundred eighty-eight".