40890016502 has 4 divisors (see below), whose sum is σ = 61335024756. Its totient is φ = 20445008250.

The previous prime is 40890016481. The next prime is 40890016523. The reversal of 40890016502 is 20561009804.

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

It is an interprime number because it is at equal distance from previous prime (40890016481) and next prime (40890016523).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10222504124 + ... + 10222504127.

It is an arithmetic number, because the mean of its divisors is an integer number (15333756189).

Almost surely, 2^40890016502 is an apocalyptic number.

40890016502 is a deficient number, since it is larger than the sum of its proper divisors (20445008254).

40890016502 is a wasteful number, since it uses less digits than its factorization.

40890016502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20445008253.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 40890016502 in words is "forty billion, eight hundred ninety million, sixteen thousand, five hundred two".