51023412145 has 32 divisors (see below), whose sum is σ = 67150581120. Its totient is φ = 37045693440.

The previous prime is 51023412131. The next prime is 51023412149. The reversal of 51023412145 is 54121432015.

It is not a de Polignac number, because 51023412145 - 2²⁵ = 50989857713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51023412149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1986354 + ... + 2011876.

It is an arithmetic number, because the mean of its divisors is an integer number (2098455660).

Almost surely, 2^51023412145 is an apocalyptic number.

It is an amenable number.

51023412145 is a deficient number, since it is larger than the sum of its proper divisors (16127168975).

51023412145 is a wasteful number, since it uses less digits than its factorization.

51023412145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26385.

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 51023412145 in words is "fifty-one billion, twenty-three million, four hundred twelve thousand, one hundred forty-five".