40297502805 has 32 divisors (see below), whose sum is σ = 73701273600. Its totient is φ = 18418112832.

The previous prime is 40297502803. The next prime is 40297502809. The reversal of 40297502805 is 50820579204.

It is not a de Polignac number, because 40297502805 - 2¹ = 40297502803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40297502803) 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, 544726 + ... + 614264.

It is an arithmetic number, because the mean of its divisors is an integer number (2303164800).

Almost surely, 2^40297502805 is an apocalyptic number.

40297502805 is the 115899-th octagonal number.

It is an amenable number.

40297502805 is a deficient number, since it is larger than the sum of its proper divisors (33403770795).

40297502805 is a wasteful number, since it uses less digits than its factorization.

40297502805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75073.

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 40297502805 in words is "forty billion, two hundred ninety-seven million, five hundred two thousand, eight hundred five".