23251401405 has 16 divisors (see below), whose sum is σ = 41335824960. Its totient is φ = 12400747344.

The previous prime is 23251401401. The next prime is 23251401451. The reversal of 23251401405 is 50410415232.

23251401405 is a `hidden beast` number, since 2 + 3 + 2 + 514 + 0 + 140 + 5 = 666.

It is not a de Polignac number, because 23251401405 - 2² = 23251401401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23251401401) 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, 86116167 + ... + 86116436.

It is an arithmetic number, because the mean of its divisors is an integer number (2583489060).

Almost surely, 2^23251401405 is an apocalyptic number.

It is an amenable number.

23251401405 is a deficient number, since it is larger than the sum of its proper divisors (18084423555).

23251401405 is a wasteful number, since it uses less digits than its factorization.

23251401405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172232617 (or 172232611 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 23251401405 its reverse (50410415232), we get a palindrome (73661816637).

The spelling of 23251401405 in words is "twenty-three billion, two hundred fifty-one million, four hundred one thousand, four hundred five".