23953139886 has 16 divisors (see below), whose sum is σ = 51591378384. Its totient is φ = 7370196864.

The previous prime is 23953139797. The next prime is 23953139911. The reversal of 23953139886 is 68893135932.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153545691 + ... + 153545846.

It is an arithmetic number, because the mean of its divisors is an integer number (3224461149).

Almost surely, 2^23953139886 is an apocalyptic number.

23953139886 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

23953139886 is an abundant number, since it is smaller than the sum of its proper divisors (27638238498).

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

23953139886 is a wasteful number, since it uses less digits than its factorization.

23953139886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307091555.

The product of its digits is 8398080, while the sum is 57.

The spelling of 23953139886 in words is "twenty-three billion, nine hundred fifty-three million, one hundred thirty-nine thousand, eight hundred eighty-six".