1377734568 has 96 divisors (see below), whose sum is σ = 4044492000. Its totient is φ = 389923968.

The previous prime is 1377734563. The next prime is 1377734573. The reversal of 1377734568 is 8654377731.

It is an interprime number because it is at equal distance from previous prime (1377734563) and next prime (1377734573).

It is a self number, because there is not a number n which added to its sum of digits gives 1377734568.

It is not an unprimeable number, because it can be changed into a prime (1377734563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120358 + ... + 131306.

It is an arithmetic number, because the mean of its divisors is an integer number (42130125).

Almost surely, 2^1377734568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1377734568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2022246000).

1377734568 is an abundant number, since it is smaller than the sum of its proper divisors (2666757432).

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

1377734568 is a wasteful number, since it uses less digits than its factorization.

1377734568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11079 (or 11068 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 51.

The square root of 1377734568 is about 37117.8470280807. The cubic root of 1377734568 is about 1112.7267237783.

The spelling of 1377734568 in words is "one billion, three hundred seventy-seven million, seven hundred thirty-four thousand, five hundred sixty-eight".