94245438744081 has 27 divisors (see below), whose sum is σ = 136295509413531. Its totient is φ = 62755055426304.

The previous prime is 94245438744049. The next prime is 94245438744103. The reversal of 94245438744081 is 18044783454249.

The square root of 94245438744081 is 9708009.

It is a perfect power (a square), and thus also a powerful number.

94245438744081 is a `hidden beast` number, since 9 + 4 + 2 + 4 + 543 + 8 + 7 + 4 + 4 + 0 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 31626957726225 + 62618481017856 = 5623785^2 + 7913184^2 .

It is not a de Polignac number, because 94245438744081 - 2⁵ = 94245438744049 is a prime.

It is a super-2 number, since 2×94245438744081² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (94245438744001) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 35443939530 + ... + 35443942188.

Almost surely, 2^{94245438744081} is an apocalyptic number.

94245438744081 is the 9708009-th square number.

94245438744081 is the 4854005-th centered octagonal number.

It is an amenable number.

94245438744081 is a deficient number, since it is larger than the sum of its proper divisors (42050070669450).

94245438744081 is an frugal number, since it uses more digits than its factorization.

94245438744081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7758 (or 3879 counting only the distinct ones).

The product of its (nonzero) digits is 123863040, while the sum is 63.

The spelling of 94245438744081 in words is "ninety-four trillion, two hundred forty-five billion, four hundred thirty-eight million, seven hundred forty-four thousand, eighty-one".