51622146651 has 8 divisors (see below), whose sum is σ = 70128199440. Its totient is φ = 33765429152.

The previous prime is 51622146649. The next prime is 51622146659. The reversal of 51622146651 is 15664122615.

51622146651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 51622146651 - 2¹ = 51622146649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51622146659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162333636 + ... + 162333953.

It is an arithmetic number, because the mean of its divisors is an integer number (8766024930).

Almost surely, 2^51622146651 is an apocalyptic number.

51622146651 is a deficient number, since it is larger than the sum of its proper divisors (18506052789).

51622146651 is a wasteful number, since it uses less digits than its factorization.

51622146651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324667645.

The product of its digits is 86400, while the sum is 39.

The spelling of 51622146651 in words is "fifty-one billion, six hundred twenty-two million, one hundred forty-six thousand, six hundred fifty-one".