40555471980 has 48 divisors (see below), whose sum is σ = 114131777760. Its totient is φ = 10759891968.

The previous prime is 40555471967. The next prime is 40555471997. The reversal of 40555471980 is 8917455504.

It is a happy 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 in 15 ways as a sum of consecutive naturals, for example, 1703725 + ... + 1727364.

It is an arithmetic number, because the mean of its divisors is an integer number (2377745370).

Almost surely, 2^40555471980 is an apocalyptic number.

It is an amenable number.

40555471980 is an abundant number, since it is smaller than the sum of its proper divisors (73576305780).

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

40555471980 is a wasteful number, since it uses less digits than its factorization.

40555471980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3431298 (or 3431296 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 48.

The spelling of 40555471980 in words is "forty billion, five hundred fifty-five million, four hundred seventy-one thousand, nine hundred eighty".