612820653853584 has 80 divisors (see below), whose sum is σ = 1727087748505920. Its totient is φ = 185698096826880.

The previous prime is 612820653853543. The next prime is 612820653853613. The reversal of 612820653853584 is 485358356028216.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3110734 + ... + 35147090.

It is an arithmetic number, because the mean of its divisors is an integer number (21588596856324).

Almost surely, 2^{612820653853584} is an apocalyptic number.

It is an amenable number.

612820653853584 is an abundant number, since it is smaller than the sum of its proper divisors (1114267094652336).

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

612820653853584 is a wasteful number, since it uses less digits than its factorization.

612820653853584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32072608 (or 32072602 counting only the distinct ones).

The product of its (nonzero) digits is 331776000, while the sum is 66.

The spelling of 612820653853584 in words is "six hundred twelve trillion, eight hundred twenty billion, six hundred fifty-three million, eight hundred fifty-three thousand, five hundred eighty-four".