21746350153832 has 16 divisors (see below), whose sum is σ = 41170274564640. Its totient is φ = 10767610269936.

The previous prime is 21746350153819. The next prime is 21746350153849. The reversal of 21746350153832 is 23835105364712.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13195599998 + ... + 13195601645.

It is an arithmetic number, because the mean of its divisors is an integer number (2573142160290).

Almost surely, 2^{21746350153832} is an apocalyptic number.

It is an amenable number.

21746350153832 is a deficient number, since it is larger than the sum of its proper divisors (19423924410808).

21746350153832 is a wasteful number, since it uses less digits than its factorization.

21746350153832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26391201752 (or 26391201748 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 50.

The spelling of 21746350153832 in words is "twenty-one trillion, seven hundred forty-six billion, three hundred fifty million, one hundred fifty-three thousand, eight hundred thirty-two".