51201633423 has 16 divisors (see below), whose sum is σ = 69894598400. Its totient is φ = 33340443192.

The previous prime is 51201633421. The next prime is 51201633433. The reversal of 51201633423 is 32433610215.

It is not a de Polignac number, because 51201633423 - 2¹ = 51201633421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51201633421) 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, 131190 + ... + 345852.

It is an arithmetic number, because the mean of its divisors is an integer number (4368412400).

Almost surely, 2^51201633423 is an apocalyptic number.

51201633423 is a deficient number, since it is larger than the sum of its proper divisors (18692964977).

51201633423 is an frugal number, since it uses more digits than its factorization.

51201633423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214795 (or 214709 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The spelling of 51201633423 in words is "fifty-one billion, two hundred one million, six hundred thirty-three thousand, four hundred twenty-three".