40320556854 has 16 divisors (see below), whose sum is σ = 85384708848. Its totient is φ = 12649586432.

The previous prime is 40320556853. The next prime is 40320556879. The reversal of 40320556854 is 45865502304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40320556853) 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, 197649687 + ... + 197649890.

It is an arithmetic number, because the mean of its divisors is an integer number (5336544303).

Almost surely, 2^40320556854 is an apocalyptic number.

40320556854 is an abundant number, since it is smaller than the sum of its proper divisors (45064151994).

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

40320556854 is a wasteful number, since it uses less digits than its factorization.

40320556854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395299599.

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 40320556854 in words is "forty billion, three hundred twenty million, five hundred fifty-six thousand, eight hundred fifty-four".