51312100445 has 8 divisors (see below), whose sum is σ = 63076338360. Its totient is φ = 40048468480.

The previous prime is 51312100439. The next prime is 51312100451. The reversal of 51312100445 is 54400121315.

51312100445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51312100439) and next prime (51312100451).

It can be written as a sum of positive squares in 4 ways, for example, as 2332213849 + 48979886596 = 48293^2 + 221314^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51312100445 - 2¹⁶ = 51312034909 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125151260 + ... + 125151669.

It is an arithmetic number, because the mean of its divisors is an integer number (7884542295).

Almost surely, 2^51312100445 is an apocalyptic number.

It is an amenable number.

51312100445 is a deficient number, since it is larger than the sum of its proper divisors (11764237915).

51312100445 is a wasteful number, since it uses less digits than its factorization.

51312100445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250302975.

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 51312100445 in words is "fifty-one billion, three hundred twelve million, one hundred thousand, four hundred forty-five".