23860197551 has 4 divisors (see below), whose sum is σ = 23880714792. Its totient is φ = 23839680312.

The previous prime is 23860197481. The next prime is 23860197589. The reversal of 23860197551 is 15579106832.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23860197551 - 2²² = 23856003247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23860197496 and 23860197505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23860197451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10256876 + ... + 10259201.

It is an arithmetic number, because the mean of its divisors is an integer number (5970178698).

Almost surely, 2^23860197551 is an apocalyptic number.

23860197551 is a deficient number, since it is larger than the sum of its proper divisors (20517241).

23860197551 is a wasteful number, since it uses less digits than its factorization.

23860197551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20517240.

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 23860197551 in words is "twenty-three billion, eight hundred sixty million, one hundred ninety-seven thousand, five hundred fifty-one".