861027883001 has 16 divisors (see below), whose sum is σ = 1011586060800. Its totient is φ = 722520289920.

The previous prime is 861027882997. The next prime is 861027883003. The reversal of 861027883001 is 100388720168.

It is not a de Polignac number, because 861027883001 - 2² = 861027882997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (861027883003) 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, 6973400 + ... + 7095798.

It is an arithmetic number, because the mean of its divisors is an integer number (63224128800).

Almost surely, 2^861027883001 is an apocalyptic number.

It is an amenable number.

861027883001 is a deficient number, since it is larger than the sum of its proper divisors (150558177799).

861027883001 is a wasteful number, since it uses less digits than its factorization.

861027883001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171616.

The product of its (nonzero) digits is 129024, while the sum is 44.

The spelling of 861027883001 in words is "eight hundred sixty-one billion, twenty-seven million, eight hundred eighty-three thousand, one".