40910510640 has 40 divisors (see below), whose sum is σ = 126822583728. Its totient is φ = 10909469440.

The previous prime is 40910510639. The next prime is 40910510713. The reversal of 40910510640 is 4601501904.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 40910510598 and 40910510607.

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, 85229991 + ... + 85230470.

Almost surely, 2^40910510640 is an apocalyptic number.

40910510640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40910510640 is an abundant number, since it is smaller than the sum of its proper divisors (85912073088).

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

40910510640 is a wasteful number, since it uses less digits than its factorization.

40910510640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170460477 (or 170460471 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 40910510640 in words is "forty billion, nine hundred ten million, five hundred ten thousand, six hundred forty".