861151068 has 48 divisors (see below), whose sum is σ = 2238704160. Its totient is φ = 286267392.

The previous prime is 861151051. The next prime is 861151069. The reversal of 861151068 is 860151168.

861151068 is a `hidden beast` number, since 86 + 1 + 1 + 510 + 68 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861151069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29596 + ... + 50972.

It is an arithmetic number, because the mean of its divisors is an integer number (46639670).

Almost surely, 2^861151068 is an apocalyptic number.

It is an amenable number.

861151068 is an abundant number, since it is smaller than the sum of its proper divisors (1377553092).

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

861151068 is a wasteful number, since it uses less digits than its factorization.

861151068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21763 (or 21755 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 861151068 is about 29345.3755811712. The cubic root of 861151068 is about 951.3926271393.

The spelling of 861151068 in words is "eight hundred sixty-one million, one hundred fifty-one thousand, sixty-eight".