207459400709401 has 27 divisors (see below), whose sum is σ = 218636982752853. Its totient is φ = 196836985227960.

The previous prime is 207459400709399. The next prime is 207459400709411. The reversal of 207459400709401 is 104907004954702.

It is a happy number.

The square root of 207459400709401 is 14403451.

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

It is not a de Polignac number, because 207459400709401 - 2¹ = 207459400709399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (207459400709411) 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, 42072477906 + ... + 42072482836.

Almost surely, 2^{207459400709401} is an apocalyptic number.

207459400709401 is the 14403451-st square number.

207459400709401 is the 7201726-th centered octagonal number.

It is an amenable number.

207459400709401 is a deficient number, since it is larger than the sum of its proper divisors (11177582043452).

207459400709401 is an frugal number, since it uses more digits than its factorization.

207459400709401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10162 (or 5081 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 207459400709401 in words is "two hundred seven trillion, four hundred fifty-nine billion, four hundred million, seven hundred nine thousand, four hundred one".