40802811868 has 48 divisors (see below), whose sum is σ = 93052580544. Its totient is φ = 15192253440.

The previous prime is 40802811859. The next prime is 40802811871. The reversal of 40802811868 is 86811820804.

It is a congruent 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, 3290743 + ... + 3303118.

It is an arithmetic number, because the mean of its divisors is an integer number (1938595428).

Almost surely, 2^40802811868 is an apocalyptic number.

It is an amenable number.

40802811868 is an abundant number, since it is smaller than the sum of its proper divisors (52249768676).

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

40802811868 is a wasteful number, since it uses less digits than its factorization.

40802811868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6593902 (or 6593900 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 46.

The spelling of 40802811868 in words is "forty billion, eight hundred two million, eight hundred eleven thousand, eight hundred sixty-eight".