40505515410 has 64 divisors (see below), whose sum is σ = 97558876800. Its totient is φ = 10763131392.

The previous prime is 40505515387. The next prime is 40505515411. The reversal of 40505515410 is 1451550504.

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

It is not an unprimeable number, because it can be changed into a prime (40505515411) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 19962276 + ... + 19964304.

It is an arithmetic number, because the mean of its divisors is an integer number (1524357450).

Almost surely, 2^40505515410 is an apocalyptic number.

40505515410 is an abundant number, since it is smaller than the sum of its proper divisors (57053361390).

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

40505515410 is a wasteful number, since it uses less digits than its factorization.

40505515410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4075.

The product of its (nonzero) digits is 10000, while the sum is 30.

The spelling of 40505515410 in words is "forty billion, five hundred five million, five hundred fifteen thousand, four hundred ten".