863459051646051 has 72 divisors (see below), whose sum is σ = 1532719870840080. Its totient is φ = 465748981520256.

The previous prime is 863459051645977. The next prime is 863459051646101. The reversal of 863459051646051 is 150646150954368.

863459051646051 is a `hidden beast` number, since 8 + 6 + 3 + 4 + 5 + 9 + 0 + 5 + 16 + 4 + 605 + 1 = 666.

It is not a de Polignac number, because 863459051646051 - 2⁹ = 863459051645539 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 863459051646051.

It is not an unprimeable number, because it can be changed into a prime (863459051646551) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 183690516 + ... + 188332481.

It is an arithmetic number, because the mean of its divisors is an integer number (21287775983890).

Almost surely, 2^{863459051646051} is an apocalyptic number.

863459051646051 is a deficient number, since it is larger than the sum of its proper divisors (669260819194029).

863459051646051 is a wasteful number, since it uses less digits than its factorization.

863459051646051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372023313 (or 372023303 counting only the distinct ones).

The product of its (nonzero) digits is 93312000, while the sum is 63.

The spelling of 863459051646051 in words is "eight hundred sixty-three trillion, four hundred fifty-nine billion, fifty-one million, six hundred forty-six thousand, fifty-one".