1377113544 has 24 divisors (see below), whose sum is σ = 3729682710. Its totient is φ = 459037824.

The previous prime is 1377113539. The next prime is 1377113557. The reversal of 1377113544 is 4453117731.

It is a happy number.

1377113544 is a `hidden beast` number, since 1 + 37 + 71 + 13 + 544 = 666.

It can be written as a sum of positive squares in only one way, i.e., 750212100 + 626901444 = 27390^2 + 25038^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1377113499 and 1377113508.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9563217 + ... + 9563360.

Almost surely, 2^1377113544 is an apocalyptic number.

It is an amenable number.

1377113544 is an abundant number, since it is smaller than the sum of its proper divisors (2352569166).

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

1377113544 is a wasteful number, since it uses less digits than its factorization.

1377113544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19126589 (or 19126582 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 1377113544 is about 37109.4805137447. The cubic root of 1377113544 is about 1112.5595087302.

It can be divided in two parts, 1377 and 113544, that added together give a square (114921 = 339²).

The spelling of 1377113544 in words is "one billion, three hundred seventy-seven million, one hundred thirteen thousand, five hundred forty-four".