40890552259218 has 64 divisors (see below), whose sum is σ = 84695580840960. Its totient is φ = 13147368192000.

The previous prime is 40890552259217. The next prime is 40890552259261. The reversal of 40890552259218 is 81295225509804.

It is not an unprimeable number, because it can be changed into a prime (40890552259217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95928696 + ... + 96354012.

It is an arithmetic number, because the mean of its divisors is an integer number (1323368450640).

Almost surely, 2^{40890552259218} is an apocalyptic number.

40890552259218 is an abundant number, since it is smaller than the sum of its proper divisors (43805028581742).

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

40890552259218 is a wasteful number, since it uses less digits than its factorization.

40890552259218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427043.

The product of its (nonzero) digits is 20736000, while the sum is 60.

The spelling of 40890552259218 in words is "forty trillion, eight hundred ninety billion, five hundred fifty-two million, two hundred fifty-nine thousand, two hundred eighteen".