618813015954 has 64 divisors (see below), whose sum is σ = 1444708417536. Its totient is φ = 173019847104.

The previous prime is 618813015923. The next prime is 618813015971. The reversal of 618813015954 is 459510318816.

It is a junction number, because it is equal to n+sod(n) for n = 618813015897 and 618813015906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21081472 + ... + 21110804.

It is an arithmetic number, because the mean of its divisors is an integer number (22573569024).

Almost surely, 2^618813015954 is an apocalyptic number.

618813015954 is an abundant number, since it is smaller than the sum of its proper divisors (825895401582).

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

618813015954 is a wasteful number, since it uses less digits than its factorization.

618813015954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40079.

The product of its (nonzero) digits is 1036800, while the sum is 51.

The spelling of 618813015954 in words is "six hundred eighteen billion, eight hundred thirteen million, fifteen thousand, nine hundred fifty-four".