51611203621115 has 32 divisors (see below), whose sum is σ = 64269927677952. Its totient is φ = 39745442448000.

The previous prime is 51611203621093. The next prime is 51611203621127. The reversal of 51611203621115 is 51112630211615.

It is not a de Polignac number, because 51611203621115 - 2²⁸ = 51610935185659 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 601619525 + ... + 601705305.

It is an arithmetic number, because the mean of its divisors is an integer number (2008435239936).

Almost surely, 2^{51611203621115} is an apocalyptic number.

51611203621115 is a deficient number, since it is larger than the sum of its proper divisors (12658724056837).

51611203621115 is a wasteful number, since it uses less digits than its factorization.

51611203621115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106331.

The product of its (nonzero) digits is 10800, while the sum is 35.

The spelling of 51611203621115 in words is "fifty-one trillion, six hundred eleven billion, two hundred three million, six hundred twenty-one thousand, one hundred fifteen".