861547016 has 32 divisors (see below), whose sum is σ = 1780440480. Its totient is φ = 387571200.

The previous prime is 861546929. The next prime is 861547021. The reversal of 861547016 is 610745168.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41930 + ... + 59001.

It is an arithmetic number, because the mean of its divisors is an integer number (55638765).

Almost surely, 2^861547016 is an apocalyptic number.

It is an amenable number.

861547016 is an abundant number, since it is smaller than the sum of its proper divisors (918893464).

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

861547016 is a wasteful number, since it uses less digits than its factorization.

861547016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101045 (or 101041 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 861547016 is about 29352.1211499271. The cubic root of 861547016 is about 951.5384181633.

The spelling of 861547016 in words is "eight hundred sixty-one million, five hundred forty-seven thousand, sixteen".