440643610793802 has 128 divisors (see below), whose sum is σ = 984552434933760. Its totient is φ = 130605760696320.

The previous prime is 440643610793791. The next prime is 440643610793873. The reversal of 440643610793802 is 208397016346044.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 234087402 + ... + 235962282.

It is an arithmetic number, because the mean of its divisors is an integer number (7691815897920).

Almost surely, 2^{440643610793802} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440643610793802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492276217466880).

440643610793802 is an abundant number, since it is smaller than the sum of its proper divisors (543908824139958).

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

440643610793802 is a wasteful number, since it uses less digits than its factorization.

440643610793802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875908.

The product of its (nonzero) digits is 20901888, while the sum is 57.

The spelling of 440643610793802 in words is "four hundred forty trillion, six hundred forty-three billion, six hundred ten million, seven hundred ninety-three thousand, eight hundred two".