23403626551 has 2 divisors, whose sum is σ = 23403626552. Its totient is φ = 23403626550.

The previous prime is 23403626537. The next prime is 23403626573. The reversal of 23403626551 is 15562630432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23403626551 - 2⁷ = 23403626423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23403626551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23403626581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11701813275 + 11701813276.

It is an arithmetic number, because the mean of its divisors is an integer number (11701813276).

Almost surely, 2^23403626551 is an apocalyptic number.

23403626551 is a deficient number, since it is larger than the sum of its proper divisors (1).

23403626551 is an equidigital number, since it uses as much as digits as its factorization.

23403626551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 23403626551 in words is "twenty-three billion, four hundred three million, six hundred twenty-six thousand, five hundred fifty-one".