94621388651 has 4 divisors (see below), whose sum is σ = 94839914232. Its totient is φ = 94402863072.

The previous prime is 94621388593. The next prime is 94621388689. The reversal of 94621388651 is 15688312649.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-94621388651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 94621388593 and 94621388602.

It is not an unprimeable number, because it can be changed into a prime (94621382651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109262141 + ... + 109263006.

It is an arithmetic number, because the mean of its divisors is an integer number (23709978558).

Almost surely, 2^94621388651 is an apocalyptic number.

94621388651 is a deficient number, since it is larger than the sum of its proper divisors (218525581).

94621388651 is a wasteful number, since it uses less digits than its factorization.

94621388651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218525580.

The product of its digits is 2488320, while the sum is 53.

The spelling of 94621388651 in words is "ninety-four billion, six hundred twenty-one million, three hundred eighty-eight thousand, six hundred fifty-one".