40026861503999 has 4 divisors (see below), whose sum is σ = 40027079733240. Its totient is φ = 40026643274760.

The previous prime is 40026861503989. The next prime is 40026861504089. The reversal of 40026861503999 is 99930516862004.

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

It is a cyclic number.

It is not a de Polignac number, because 40026861503999 - 2¹² = 40026861499903 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 (40026861503989) 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, 108839264 + ... + 109206405.

It is an arithmetic number, because the mean of its divisors is an integer number (10006769933310).

Almost surely, 2^{40026861503999} is an apocalyptic number.

40026861503999 is a deficient number, since it is larger than the sum of its proper divisors (218229241).

40026861503999 is a wasteful number, since it uses less digits than its factorization.

40026861503999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218229240.

The product of its (nonzero) digits is 25194240, while the sum is 62.

The spelling of 40026861503999 in words is "forty trillion, twenty-six billion, eight hundred sixty-one million, five hundred three thousand, nine hundred ninety-nine".