40017372430561 has 4 divisors (see below), whose sum is σ = 41308255412224. Its totient is φ = 38726489448900.

The previous prime is 40017372430559. The next prime is 40017372430603. The reversal of 40017372430561 is 16503427371004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40017372430561 - 2¹ = 40017372430559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40017372430531) 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 3 ways as a sum of consecutive naturals, for example, 645441490785 + ... + 645441490846.

It is an arithmetic number, because the mean of its divisors is an integer number (10327063853056).

Almost surely, 2^{40017372430561} is an apocalyptic number.

It is an amenable number.

40017372430561 is a deficient number, since it is larger than the sum of its proper divisors (1290882981663).

40017372430561 is a wasteful number, since it uses less digits than its factorization.

40017372430561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290882981662.

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 40017372430561 in words is "forty trillion, seventeen billion, three hundred seventy-two million, four hundred thirty thousand, five hundred sixty-one".