40807264585243 has 4 divisors (see below), whose sum is σ = 43946284937968. Its totient is φ = 37668244232520.

The previous prime is 40807264585187. The next prime is 40807264585247. The reversal of 40807264585243 is 34258546270804.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40807264585243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40807264585247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1569510176343 + ... + 1569510176368.

It is an arithmetic number, because the mean of its divisors is an integer number (10986571234492).

Almost surely, 2^{40807264585243} is an apocalyptic number.

40807264585243 is a deficient number, since it is larger than the sum of its proper divisors (3139020352725).

40807264585243 is a wasteful number, since it uses less digits than its factorization.

40807264585243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3139020352724.

The product of its (nonzero) digits is 51609600, while the sum is 58.

The spelling of 40807264585243 in words is "forty trillion, eight hundred seven billion, two hundred sixty-four million, five hundred eighty-five thousand, two hundred forty-three".