24195491401 has 9 divisors (see below), whose sum is σ = 25296947949. Its totient is φ = 23140091436.

The previous prime is 24195491393. The next prime is 24195491407. The reversal of 24195491401 is 10419459142.

The square root of 24195491401 is 155549.

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

It is not a de Polignac number, because 24195491401 - 2³ = 24195491393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24195491407) 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, 3574246 + ... + 3581008.

Almost surely, 2^24195491401 is an apocalyptic number.

24195491401 is the 155549-th square number.

24195491401 is the 77775-th centered octagonal number.

It is an amenable number.

24195491401 is a deficient number, since it is larger than the sum of its proper divisors (1101456548).

24195491401 is an frugal number, since it uses more digits than its factorization.

24195491401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13572 (or 6786 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 24195491401 in words is "twenty-four billion, one hundred ninety-five million, four hundred ninety-one thousand, four hundred one".