21376002534650 has 96 divisors (see below), whose sum is σ = 42251012512128. Its totient is φ = 8029069804800.

The previous prime is 21376002534613. The next prime is 21376002534659. The reversal of 21376002534650 is 5643520067312.

It is a super-2 number, since 2×21376002534650² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21376002534659) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22102220 + ... + 23049080.

It is an arithmetic number, because the mean of its divisors is an integer number (440114713668).

Almost surely, 2^{21376002534650} is an apocalyptic number.

21376002534650 is a deficient number, since it is larger than the sum of its proper divisors (20875009977478).

21376002534650 is a wasteful number, since it uses less digits than its factorization.

21376002534650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947256 (or 947251 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 44.

The spelling of 21376002534650 in words is "twenty-one trillion, three hundred seventy-six billion, two million, five hundred thirty-four thousand, six hundred fifty".