23126837916 has 144 divisors (see below), whose sum is σ = 70541259264. Its totient is φ = 5834150784.

The previous prime is 23126837891. The next prime is 23126837933. The reversal of 23126837916 is 61973862132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 110041 + ... + 241583.

It is an arithmetic number, because the mean of its divisors is an integer number (489869856).

Almost surely, 2^23126837916 is an apocalyptic number.

23126837916 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23126837916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35270629632).

23126837916 is an abundant number, since it is smaller than the sum of its proper divisors (47414421348).

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

23126837916 is a wasteful number, since it uses less digits than its factorization.

23126837916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131600 (or 131591 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The spelling of 23126837916 in words is "twenty-three billion, one hundred twenty-six million, eight hundred thirty-seven thousand, nine hundred sixteen".