40864802266866 has 32 divisors (see below), whose sum is σ = 85283431643520. Its totient is φ = 13029301321344.

The previous prime is 40864802266817. The next prime is 40864802266913. The reversal of 40864802266866 is 66866220846804.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 40864802266797 and 40864802266806.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41921820 + ... + 42885528.

It is an arithmetic number, because the mean of its divisors is an integer number (2665107238860).

Almost surely, 2^{40864802266866} is an apocalyptic number.

40864802266866 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

40864802266866 is an abundant number, since it is smaller than the sum of its proper divisors (44418629376654).

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

40864802266866 is a wasteful number, since it uses less digits than its factorization.

40864802266866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271010.

The product of its (nonzero) digits is 254803968, while the sum is 66.

The spelling of 40864802266866 in words is "forty trillion, eight hundred sixty-four billion, eight hundred two million, two hundred sixty-six thousand, eight hundred sixty-six".