23490138268 has 24 divisors (see below), whose sum is σ = 42457132368. Its totient is φ = 11365600896.

The previous prime is 23490138251. The next prime is 23490138271. The reversal of 23490138268 is 86283109432.

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, 743446 + ... + 774397.

It is an arithmetic number, because the mean of its divisors is an integer number (1769047182).

Almost surely, 2^23490138268 is an apocalyptic number.

It is an amenable number.

23490138268 is a deficient number, since it is larger than the sum of its proper divisors (18966994100).

23490138268 is a wasteful number, since it uses less digits than its factorization.

23490138268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517973 (or 1517971 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 23490138268 in words is "twenty-three billion, four hundred ninety million, one hundred thirty-eight thousand, two hundred sixty-eight".