618416420626 has 32 divisors (see below), whose sum is σ = 971204670720. Its totient is φ = 294772720704.

The previous prime is 618416420621. The next prime is 618416420627. The reversal of 618416420626 is 626024614816.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (618416420621) 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, 31911876 + ... + 31931248.

It is an arithmetic number, because the mean of its divisors is an integer number (30350145960).

Almost surely, 2^618416420626 is an apocalyptic number.

618416420626 is a deficient number, since it is larger than the sum of its proper divisors (352788250094).

618416420626 is a wasteful number, since it uses less digits than its factorization.

618416420626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21690.

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 618416420626 in words is "six hundred eighteen billion, four hundred sixteen million, four hundred twenty thousand, six hundred twenty-six".