20833842464 has 12 divisors (see below), whose sum is σ = 41016627414. Its totient is φ = 10416921216.

The previous prime is 20833842443. The next prime is 20833842479. The reversal of 20833842464 is 46424833802.

It can be written as a sum of positive squares in only one way, i.e., 19684090000 + 1149752464 = 140300^2 + 33908^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325528757 + ... + 325528820.

Almost surely, 2^20833842464 is an apocalyptic number.

It is an amenable number.

20833842464 is a deficient number, since it is larger than the sum of its proper divisors (20182784950).

20833842464 is an equidigital number, since it uses as much as digits as its factorization.

20833842464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651057587 (or 651057579 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 44.

The spelling of 20833842464 in words is "twenty billion, eight hundred thirty-three million, eight hundred forty-two thousand, four hundred sixty-four".