918636864654 has 16 divisors (see below), whose sum is σ = 1933972346880. Its totient is φ = 290095851960.

The previous prime is 918636864641. The next prime is 918636864661. The reversal of 918636864654 is 456468636819.

It is a congruent number.

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, 4029108942 + ... + 4029109169.

It is an arithmetic number, because the mean of its divisors is an integer number (120873271680).

Almost surely, 2^918636864654 is an apocalyptic number.

918636864654 is an abundant number, since it is smaller than the sum of its proper divisors (1015335482226).

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

918636864654 is a wasteful number, since it uses less digits than its factorization.

918636864654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8058218135.

The product of its digits is 179159040, while the sum is 66.

The spelling of 918636864654 in words is "nine hundred eighteen billion, six hundred thirty-six million, eight hundred sixty-four thousand, six hundred fifty-four".