51643576633222 has 8 divisors (see below), whose sum is σ = 88531845656976. Its totient is φ = 22132961414232.

The previous prime is 51643576633219. The next prime is 51643576633267. The reversal of 51643576633222 is 22233667534615.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1844413451173 + ... + 1844413451200.

It is an arithmetic number, because the mean of its divisors is an integer number (11066480707122).

Almost surely, 2^{51643576633222} is an apocalyptic number.

51643576633222 is a deficient number, since it is larger than the sum of its proper divisors (36888269023754).

51643576633222 is a wasteful number, since it uses less digits than its factorization.

51643576633222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3688826902382.

The product of its digits is 32659200, while the sum is 55.

The spelling of 51643576633222 in words is "fifty-one trillion, six hundred forty-three billion, five hundred seventy-six million, six hundred thirty-three thousand, two hundred twenty-two".