618351457938 has 16 divisors (see below), whose sum is σ = 1240604190720. Its totient is φ = 205466940176.

The previous prime is 618351457921. The next prime is 618351457951. The reversal of 618351457938 is 839754153816.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162551058 + ... + 162554861.

It is an arithmetic number, because the mean of its divisors is an integer number (77537761920).

Almost surely, 2^618351457938 is an apocalyptic number.

618351457938 is an abundant number, since it is smaller than the sum of its proper divisors (622252732782).

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

618351457938 is a wasteful number, since it uses less digits than its factorization.

618351457938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325106241.

The product of its digits is 21772800, while the sum is 60.

The spelling of 618351457938 in words is "six hundred eighteen billion, three hundred fifty-one million, four hundred fifty-seven thousand, nine hundred thirty-eight".