51601622763 has 16 divisors (see below), whose sum is σ = 69174547200. Its totient is φ = 34215024096.

The previous prime is 51601622759. The next prime is 51601622767. The reversal of 51601622763 is 36722610615.

It is an interprime number because it is at equal distance from previous prime (51601622759) and next prime (51601622767).

It is not a de Polignac number, because 51601622763 - 2² = 51601622759 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51601622767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1678456 + ... + 1708922.

It is an arithmetic number, because the mean of its divisors is an integer number (4323409200).

Almost surely, 2^51601622763 is an apocalyptic number.

51601622763 is a deficient number, since it is larger than the sum of its proper divisors (17572924437).

51601622763 is a wasteful number, since it uses less digits than its factorization.

51601622763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33506.

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 51601622763 in words is "fifty-one billion, six hundred one million, six hundred twenty-two thousand, seven hundred sixty-three".