40442521515015 has 32 divisors (see below), whose sum is σ = 65377138115520. Its totient is φ = 21346323922944.

The previous prime is 40442521515013. The next prime is 40442521515079. The reversal of 40442521515015 is 51051512524404.

It is not a de Polignac number, because 40442521515015 - 2¹ = 40442521515013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40442521515013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48851451 + ... + 49672419.

It is an arithmetic number, because the mean of its divisors is an integer number (2043035566110).

Almost surely, 2^{40442521515015} is an apocalyptic number.

40442521515015 is a deficient number, since it is larger than the sum of its proper divisors (24934616600505).

40442521515015 is a wasteful number, since it uses less digits than its factorization.

40442521515015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854931.

The product of its (nonzero) digits is 160000, while the sum is 39.

The spelling of 40442521515015 in words is "forty trillion, four hundred forty-two billion, five hundred twenty-one million, five hundred fifteen thousand, fifteen".