40643574502 has 4 divisors (see below), whose sum is σ = 60965361756. Its totient is φ = 20321787250.

The previous prime is 40643574487. The next prime is 40643574509. The reversal of 40643574502 is 20547534604.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40643574509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10160893624 + ... + 10160893627.

It is an arithmetic number, because the mean of its divisors is an integer number (15241340439).

Almost surely, 2^40643574502 is an apocalyptic number.

40643574502 is a deficient number, since it is larger than the sum of its proper divisors (20321787254).

40643574502 is a wasteful number, since it uses less digits than its factorization.

40643574502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20321787253.

The product of its (nonzero) digits is 403200, while the sum is 40.

The spelling of 40643574502 in words is "forty billion, six hundred forty-three million, five hundred seventy-four thousand, five hundred two".