23870394135 has 192 divisors, whose sum is σ = 50563408896. Its totient is φ = 10189670400.

The previous prime is 23870394077. The next prime is 23870394137. The reversal of 23870394135 is 53149307832.

It is not a de Polignac number, because 23870394135 - 2¹² = 23870390039 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23870394137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 29432880 + ... + 29433690.

It is an arithmetic number, because the mean of its divisors is an integer number (263351088).

Almost surely, 2^23870394135 is an apocalyptic number.

23870394135 is an abundant number, since it is smaller than the sum of its proper divisors (26693014761).

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

23870394135 is a wasteful number, since it uses less digits than its factorization.

23870394135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966 (or 963 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 23870394135 in words is "twenty-three billion, eight hundred seventy million, three hundred ninety-four thousand, one hundred thirty-five".