51101521473 has 16 divisors (see below), whose sum is σ = 68849095616. Its totient is φ = 33710929920.

The previous prime is 51101521447. The next prime is 51101521481. The reversal of 51101521473 is 37412510115.

It is not a de Polignac number, because 51101521473 - 2⁶ = 51101521409 is a prime.

It is a super-2 number, since 2×51101521473² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51101521473.

It is not an unprimeable number, because it can be changed into a prime (51101521873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2530665 + ... + 2550777.

It is an arithmetic number, because the mean of its divisors is an integer number (4303068476).

Almost surely, 2^51101521473 is an apocalyptic number.

It is an amenable number.

51101521473 is a deficient number, since it is larger than the sum of its proper divisors (17747574143).

51101521473 is a wasteful number, since it uses less digits than its factorization.

51101521473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28944.

The product of its (nonzero) digits is 4200, while the sum is 30.

The spelling of 51101521473 in words is "fifty-one billion, one hundred one million, five hundred twenty-one thousand, four hundred seventy-three".