23891642636730 has 32 divisors (see below), whose sum is σ = 62552664358848. Its totient is φ = 5791913366400.

The previous prime is 23891642636717. The next prime is 23891642636737. The reversal of 23891642636730 is 3763624619832.

It is not an unprimeable number, because it can be changed into a prime (23891642636737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36199458211 + ... + 36199458870.

It is an arithmetic number, because the mean of its divisors is an integer number (1954770761214).

Almost surely, 2^{23891642636730} is an apocalyptic number.

23891642636730 is an abundant number, since it is smaller than the sum of its proper divisors (38661021722118).

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

23891642636730 is a wasteful number, since it uses less digits than its factorization.

23891642636730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72398917102.

The product of its (nonzero) digits is 47029248, while the sum is 60.

The spelling of 23891642636730 in words is "twenty-three trillion, eight hundred ninety-one billion, six hundred forty-two million, six hundred thirty-six thousand, seven hundred thirty".