1940764638524 has 24 divisors (see below), whose sum is σ = 3404110953600. Its totient is φ = 968161775616.

The previous prime is 1940764638521. The next prime is 1940764638539. The reversal of 1940764638524 is 4258364670491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940764638521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52311509 + ... + 52348595.

It is an arithmetic number, because the mean of its divisors is an integer number (141837956400).

It is a 1-persistent number, because it is pandigital, but 2⋅1940764638524 = 3881529277048 is not.

Almost surely, 2^{1940764638524} is an apocalyptic number.

It is an amenable number.

1940764638524 is a deficient number, since it is larger than the sum of its proper divisors (1463346315076).

1940764638524 is a wasteful number, since it uses less digits than its factorization.

1940764638524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66677 (or 66675 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 59.

The spelling of 1940764638524 in words is "one trillion, nine hundred forty billion, seven hundred sixty-four million, six hundred thirty-eight thousand, five hundred twenty-four".