445169868704401 has 9 divisors (see below), whose sum is σ = 452844272647753. Its totient is φ = 437623392947620.

The previous prime is 445169868704387. The next prime is 445169868704419. The reversal of 445169868704401 is 104407868961544.

The square root of 445169868704401 is 21099049.

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

It is not a de Polignac number, because 445169868704401 - 2⁵ = 445169868704369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445169868704501) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1244665086 + ... + 1245022696.

Almost surely, 2^{445169868704401} is an apocalyptic number.

445169868704401 is the 21099049-th square number.

445169868704401 is the 10549525-th centered octagonal number.

It is an amenable number.

445169868704401 is a deficient number, since it is larger than the sum of its proper divisors (7674403943352).

445169868704401 is an frugal number, since it uses more digits than its factorization.

445169868704401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715340 (or 357670 counting only the distinct ones).

The product of its (nonzero) digits is 185794560, while the sum is 67.

The spelling of 445169868704401 in words is "four hundred forty-five trillion, one hundred sixty-nine billion, eight hundred sixty-eight million, seven hundred four thousand, four hundred one".