612489215794 has 32 divisors (see below), whose sum is σ = 969380285040. Its totient is φ = 289795833600.

The previous prime is 612489215777. The next prime is 612489215903. The reversal of 612489215794 is 497512984216.

It can be written as a sum of positive squares in 8 ways, for example, as 532732113225 + 79757102569 = 729885^2 + 282413^2 .

It is a super-3 number, since 3×612489215794³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (58).

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 15 ways as a sum of consecutive naturals, for example, 2786764 + ... + 2998504.

Almost surely, 2^612489215794 is an apocalyptic number.

612489215794 is a deficient number, since it is larger than the sum of its proper divisors (356891069246).

612489215794 is a wasteful number, since it uses less digits than its factorization.

612489215794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212766.

The product of its digits is 8709120, while the sum is 58.

The spelling of 612489215794 in words is "six hundred twelve billion, four hundred eighty-nine million, two hundred fifteen thousand, seven hundred ninety-four".