40891008810 has 64 divisors (see below), whose sum is σ = 98860798080. Its totient is φ = 10824222720.

The previous prime is 40891008797. The next prime is 40891008811. The reversal of 40891008810 is 1880019804.

It is a happy number.

It is a super-2 number, since 2×40891008810² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40891008811) 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, 3177990 + ... + 3190830.

It is an arithmetic number, because the mean of its divisors is an integer number (1544699970).

Almost surely, 2^40891008810 is an apocalyptic number.

40891008810 is an abundant number, since it is smaller than the sum of its proper divisors (57969789270).

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

40891008810 is a wasteful number, since it uses less digits than its factorization.

40891008810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13623.

The product of its (nonzero) digits is 18432, while the sum is 39.

The spelling of 40891008810 in words is "forty billion, eight hundred ninety-one million, eight thousand, eight hundred ten".