40890987796 has 12 divisors (see below), whose sum is σ = 71562128148. Its totient is φ = 20444665472.

The previous prime is 40890987737. The next prime is 40890987811. The reversal of 40890987796 is 69778909804.

It can be written as a sum of positive squares in 2 ways, for example, as 9733795600 + 31157192196 = 98660^2 + 176514^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88501 + ... + 299356.

It is an arithmetic number, because the mean of its divisors is an integer number (5963510679).

Almost surely, 2^40890987796 is an apocalyptic number.

It is an amenable number.

40890987796 is a deficient number, since it is larger than the sum of its proper divisors (30671140352).

40890987796 is a wasteful number, since it uses less digits than its factorization.

40890987796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414218 (or 414216 counting only the distinct ones).

The product of its (nonzero) digits is 54867456, while the sum is 67.

The spelling of 40890987796 in words is "forty billion, eight hundred ninety million, nine hundred eighty-seven thousand, seven hundred ninety-six".