23977567487 has 2 divisors, whose sum is σ = 23977567488. Its totient is φ = 23977567486.

The previous prime is 23977567403. The next prime is 23977567501. The reversal of 23977567487 is 78476577932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23977567487 - 2⁸ = 23977567231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23977567087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11988783743 + 11988783744.

It is an arithmetic number, because the mean of its divisors is an integer number (11988783744).

Almost surely, 2^23977567487 is an apocalyptic number.

23977567487 is a deficient number, since it is larger than the sum of its proper divisors (1).

23977567487 is an equidigital number, since it uses as much as digits as its factorization.

23977567487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124467840, while the sum is 65.

The spelling of 23977567487 in words is "twenty-three billion, nine hundred seventy-seven million, five hundred sixty-seven thousand, four hundred eighty-seven".