861113760 has 96 divisors (see below), whose sum is σ = 2921184000. Its totient is φ = 211964928.

The previous prime is 861113749. The next prime is 861113761. The reversal of 861113760 is 67311168.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×861113760² = 1483033815322675200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (861113761) 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, 62760 + ... + 75239.

It is an arithmetic number, because the mean of its divisors is an integer number (30429000).

Almost surely, 2^861113760 is an apocalyptic number.

861113760 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

861113760 is an abundant number, since it is smaller than the sum of its proper divisors (2060070240).

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

861113760 is a wasteful number, since it uses less digits than its factorization.

861113760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138030 (or 138022 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 861113760 is about 29344.7399034307. The cubic root of 861113760 is about 951.3788877502.

The spelling of 861113760 in words is "eight hundred sixty-one million, one hundred thirteen thousand, seven hundred sixty".