94417551921 has 16 divisors (see below), whose sum is σ = 156953852928. Its totient is φ = 49048078800.

The previous prime is 94417551871. The next prime is 94417551953. The reversal of 94417551921 is 12915571449.

It is not a de Polignac number, because 94417551921 - 2¹¹ = 94417549873 is a prime.

It is a super-2 number, since 2×94417551921² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (94417551971) 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, 204366765 + ... + 204367226.

It is an arithmetic number, because the mean of its divisors is an integer number (9809615808).

Almost surely, 2^94417551921 is an apocalyptic number.

It is an amenable number.

94417551921 is a deficient number, since it is larger than the sum of its proper divisors (62536301007).

94417551921 is a wasteful number, since it uses less digits than its factorization.

94417551921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408734012.

The product of its digits is 453600, while the sum is 48.

The spelling of 94417551921 in words is "ninety-four billion, four hundred seventeen million, five hundred fifty-one thousand, nine hundred twenty-one".