23205542451 has 96 divisors (see below), whose sum is σ = 41184843840. Its totient is φ = 11497780224.

The previous prime is 23205542431. The next prime is 23205542473. The reversal of 23205542451 is 15424550232.

It is a happy number.

It is not a de Polignac number, because 23205542451 - 2¹⁵ = 23205509683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23205542401) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2044845 + ... + 2056161.

It is an arithmetic number, because the mean of its divisors is an integer number (429008790).

Almost surely, 2^23205542451 is an apocalyptic number.

23205542451 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23205542451 is a deficient number, since it is larger than the sum of its proper divisors (17979301389).

23205542451 is a wasteful number, since it uses less digits than its factorization.

23205542451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11413 (or 11406 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 23205542451 in words is "twenty-three billion, two hundred five million, five hundred forty-two thousand, four hundred fifty-one".