15638753023 has 2 divisors, whose sum is σ = 15638753024. Its totient is φ = 15638753022.

The previous prime is 15638752991. The next prime is 15638753027. The reversal of 15638753023 is 32035783651.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15638753023 - 2⁵ = 15638752991 is a prime.

It is a super-2 number, since 2×15638753023² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15638753027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7819376511 + 7819376512.

It is an arithmetic number, because the mean of its divisors is an integer number (7819376512).

Almost surely, 2^15638753023 is an apocalyptic number.

15638753023 is a deficient number, since it is larger than the sum of its proper divisors (1).

15638753023 is an equidigital number, since it uses as much as digits as its factorization.

15638753023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 15638753023 in words is "fifteen billion, six hundred thirty-eight million, seven hundred fifty-three thousand, twenty-three".