612799600638 has 8 divisors (see below), whose sum is σ = 1225599201288. Its totient is φ = 204266533544.

The previous prime is 612799600603. The next prime is 612799600639. The reversal of 612799600638 is 836006997216.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

612799600638 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612799600639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51066633381 + ... + 51066633392.

It is an arithmetic number, because the mean of its divisors is an integer number (153199900161).

Almost surely, 2^612799600638 is an apocalyptic number.

612799600638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

612799600638 is a wasteful number, since it uses less digits than its factorization.

612799600638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102133266778.

The product of its (nonzero) digits is 5878656, while the sum is 57.

The spelling of 612799600638 in words is "six hundred twelve billion, seven hundred ninety-nine million, six hundred thousand, six hundred thirty-eight".