23891278510 has 128 divisors (see below), whose sum is σ = 51069191040. Its totient is φ = 7960780800.

The previous prime is 23891278487. The next prime is 23891278511. The reversal of 23891278510 is 1587219832.

It is a happy number.

23891278510 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23891278511) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4836762 + ... + 4841698.

It is an arithmetic number, because the mean of its divisors is an integer number (398978055).

Almost surely, 2^23891278510 is an apocalyptic number.

23891278510 is an abundant number, since it is smaller than the sum of its proper divisors (27177912530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23891278510 is a wasteful number, since it uses less digits than its factorization.

23891278510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5062.

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 23891278510 in words is "twenty-three billion, eight hundred ninety-one million, two hundred seventy-eight thousand, five hundred ten".