51011510011 has 48 divisors (see below), whose sum is σ = 67295913984. Its totient is φ = 37525824000.

The previous prime is 51011510009. The next prime is 51011510029. The reversal of 51011510011 is 11001511015.

It is not a de Polignac number, because 51011510011 - 2¹ = 51011510009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51011510111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4006191 + ... + 4018903.

It is an arithmetic number, because the mean of its divisors is an integer number (1401998208).

Almost surely, 2^51011510011 is an apocalyptic number.

51011510011 is a deficient number, since it is larger than the sum of its proper divisors (16284403973).

51011510011 is a wasteful number, since it uses less digits than its factorization.

51011510011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12844 (or 12803 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 16.

The spelling of 51011510011 in words is "fifty-one billion, eleven million, five hundred ten thousand, eleven".