40115354356015 has 4 divisors (see below), whose sum is σ = 48138425227224. Its totient is φ = 32092283484808.

The previous prime is 40115354355971. The next prime is 40115354356019. The reversal of 40115354356015 is 51065345351104.

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 40115354356015 - 2²³ = 40115345967407 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 (40115354356019) 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, 4011535435597 + ... + 4011535435606.

It is an arithmetic number, because the mean of its divisors is an integer number (12034606306806).

Almost surely, 2^{40115354356015} is an apocalyptic number.

40115354356015 is a deficient number, since it is larger than the sum of its proper divisors (8023070871209).

40115354356015 is an equidigital number, since it uses as much as digits as its factorization.

40115354356015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8023070871208.

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 40115354356015 in words is "forty trillion, one hundred fifteen billion, three hundred fifty-four million, three hundred fifty-six thousand, fifteen".