612478319990 has 32 divisors (see below), whose sum is σ = 1167571739520. Its totient is φ = 230528692224.

The previous prime is 612478319989. The next prime is 612478320061. The reversal of 612478319990 is 99913874216.

It is a congruent number.

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, 368051 + ... + 1166369.

It is an arithmetic number, because the mean of its divisors is an integer number (36486616860).

Almost surely, 2^612478319990 is an apocalyptic number.

612478319990 is a deficient number, since it is larger than the sum of its proper divisors (555093419530).

612478319990 is a wasteful number, since it uses less digits than its factorization.

612478319990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802856.

The product of its (nonzero) digits is 5878656, while the sum is 59.

The spelling of 612478319990 in words is "six hundred twelve billion, four hundred seventy-eight million, three hundred nineteen thousand, nine hundred ninety".