51189002745 has 16 divisors (see below), whose sum is σ = 85463379072. Its totient is φ = 26113809920.

The previous prime is 51189002737. The next prime is 51189002749. The reversal of 51189002745 is 54720098115.

It is not a de Polignac number, because 51189002745 - 2³ = 51189002737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51189002697 and 51189002706.

It is not an unprimeable number, because it can be changed into a prime (51189002749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74186616 + ... + 74187305.

It is an arithmetic number, because the mean of its divisors is an integer number (5341461192).

Almost surely, 2^51189002745 is an apocalyptic number.

It is an amenable number.

51189002745 is a deficient number, since it is larger than the sum of its proper divisors (34274376327).

51189002745 is a wasteful number, since it uses less digits than its factorization.

51189002745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148373952.

The product of its (nonzero) digits is 100800, while the sum is 42.

The spelling of 51189002745 in words is "fifty-one billion, one hundred eighty-nine million, two thousand, seven hundred forty-five".