51013620235 has 16 divisors (see below), whose sum is σ = 61320600000. Its totient is φ = 40741456896.

The previous prime is 51013620221. The next prime is 51013620313. The reversal of 51013620235 is 53202631015.

It is a cyclic number.

It is not a de Polignac number, because 51013620235 - 2²¹ = 51011523083 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10202266 + ... + 10207264.

It is an arithmetic number, because the mean of its divisors is an integer number (3832537500).

Almost surely, 2^51013620235 is an apocalyptic number.

51013620235 is a deficient number, since it is larger than the sum of its proper divisors (10306979765).

51013620235 is a wasteful number, since it uses less digits than its factorization.

51013620235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8070.

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 51013620235 in words is "fifty-one billion, thirteen million, six hundred twenty thousand, two hundred thirty-five".