40487430317 has 8 divisors (see below), whose sum is σ = 40568477880. Its totient is φ = 40406446080.

The previous prime is 40487430257. The next prime is 40487430329. The reversal of 40487430317 is 71303478404.

It can be written as a sum of positive squares in 4 ways, for example, as 13608155716 + 26879274601 = 116654^2 + 163949^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40487430317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40487430377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1386059 + ... + 1414967.

It is an arithmetic number, because the mean of its divisors is an integer number (5071059735).

Almost surely, 2^40487430317 is an apocalyptic number.

It is an amenable number.

40487430317 is a deficient number, since it is larger than the sum of its proper divisors (81047563).

40487430317 is a wasteful number, since it uses less digits than its factorization.

40487430317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31663.

The product of its (nonzero) digits is 225792, while the sum is 41.

The spelling of 40487430317 in words is "forty billion, four hundred eighty-seven million, four hundred thirty thousand, three hundred seventeen".