23251328137992 has 32 divisors (see below), whose sum is σ = 58139676057600. Its totient is φ = 7748928617664.

The previous prime is 23251328137987. The next prime is 23251328138009. The reversal of 23251328137992 is 29973182315232.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94505523 + ... + 94751234.

It is an arithmetic number, because the mean of its divisors is an integer number (1816864876800).

Almost surely, 2^{23251328137992} is an apocalyptic number.

It is an amenable number.

23251328137992 is an abundant number, since it is smaller than the sum of its proper divisors (34888347919608).

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

23251328137992 is a wasteful number, since it uses less digits than its factorization.

23251328137992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189261885 (or 189261881 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 57.

The spelling of 23251328137992 in words is "twenty-three trillion, two hundred fifty-one billion, three hundred twenty-eight million, one hundred thirty-seven thousand, nine hundred ninety-two".