612936888018 has 288 divisors, whose sum is σ = 1602451287360. Its totient is φ = 154902585600.

The previous prime is 612936887977. The next prime is 612936888041. The reversal of 612936888018 is 810888639216.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 400349913 + ... + 400351443.

It is an arithmetic number, because the mean of its divisors is an integer number (5564066970).

Almost surely, 2^612936888018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612936888018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (801225643680).

612936888018 is an abundant number, since it is smaller than the sum of its proper divisors (989514399342).

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

612936888018 is a wasteful number, since it uses less digits than its factorization.

612936888018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1734 (or 1696 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 60.

The spelling of 612936888018 in words is "six hundred twelve billion, nine hundred thirty-six million, eight hundred eighty-eight thousand, eighteen".