40985311506 has 16 divisors (see below), whose sum is σ = 81974224800. Its totient is φ = 13661170208.

The previous prime is 40985311457. The next prime is 40985311519. The reversal of 40985311506 is 60511358904.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11185 + ... + 286523.

It is an arithmetic number, because the mean of its divisors is an integer number (5123389050).

Almost surely, 2^40985311506 is an apocalyptic number.

40985311506 is an abundant number, since it is smaller than the sum of its proper divisors (40988913294).

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

40985311506 is a wasteful number, since it uses less digits than its factorization.

40985311506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300153.

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 40985311506 in words is "forty billion, nine hundred eighty-five million, three hundred eleven thousand, five hundred six".