1138767795 has 128 divisors (see below), whose sum is σ = 2361139200. Its totient is φ = 515289600.

The previous prime is 1138767787. The next prime is 1138767811. The reversal of 1138767795 is 5977678311.

It is not a de Polignac number, because 1138767795 - 2³ = 1138767787 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1334589 + ... + 1335441.

It is an arithmetic number, because the mean of its divisors is an integer number (18446400).

Almost surely, 2^1138767795 is an apocalyptic number.

1138767795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1138767795 is an abundant number, since it is smaller than the sum of its proper divisors (1222371405).

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

1138767795 is a wasteful number, since it uses less digits than its factorization.

1138767795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938 (or 932 counting only the distinct ones).

The product of its digits is 2222640, while the sum is 54.

The square root of 1138767795 is about 33745.6337175641. The cubic root of 1138767795 is about 1044.2674123415.

The spelling of 1138767795 in words is "one billion, one hundred thirty-eight million, seven hundred sixty-seven thousand, seven hundred ninety-five".