40381389026815 has 8 divisors (see below), whose sum is σ = 48458362512240. Its totient is φ = 32304647434752.

The previous prime is 40381389026807. The next prime is 40381389026821. The reversal of 40381389026815 is 51862098318304.

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

It is a cyclic number.

It is not a de Polignac number, because 40381389026815 - 2³ = 40381389026807 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40381389026815.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57590005 + ... + 58286974.

It is an arithmetic number, because the mean of its divisors is an integer number (6057295314030).

Almost surely, 2^{40381389026815} is an apocalyptic number.

40381389026815 is a deficient number, since it is larger than the sum of its proper divisors (8076973485425).

40381389026815 is a wasteful number, since it uses less digits than its factorization.

40381389026815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115946681.

The product of its (nonzero) digits is 9953280, while the sum is 58.

The spelling of 40381389026815 in words is "forty trillion, three hundred eighty-one billion, three hundred eighty-nine million, twenty-six thousand, eight hundred fifteen".