861514386051 has 16 divisors (see below), whose sum is σ = 1253199254400. Its totient is φ = 522093505920.

The previous prime is 861514386043. The next prime is 861514386071. The reversal of 861514386051 is 150683415168.

It is not a de Polignac number, because 861514386051 - 2³ = 861514386043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (861514386001) 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, 426585 + ... + 1380218.

It is an arithmetic number, because the mean of its divisors is an integer number (78324953400).

Almost surely, 2^861514386051 is an apocalyptic number.

861514386051 is a deficient number, since it is larger than the sum of its proper divisors (391684868349).

861514386051 is a wasteful number, since it uses less digits than its factorization.

861514386051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821266.

The product of its (nonzero) digits is 691200, while the sum is 48.

The spelling of 861514386051 in words is "eight hundred sixty-one billion, five hundred fourteen million, three hundred eighty-six thousand, fifty-one".