40513561115 has 4 divisors (see below), whose sum is σ = 48616273344. Its totient is φ = 32410848888.

The previous prime is 40513561103. The next prime is 40513561133. The reversal of 40513561115 is 51116531504.

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 40513561115 - 2⁶ = 40513561051 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4051356107 + ... + 4051356116.

It is an arithmetic number, because the mean of its divisors is an integer number (12154068336).

Almost surely, 2^40513561115 is an apocalyptic number.

40513561115 is a deficient number, since it is larger than the sum of its proper divisors (8102712229).

40513561115 is an equidigital number, since it uses as much as digits as its factorization.

40513561115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8102712228.

The product of its (nonzero) digits is 9000, while the sum is 32.

The spelling of 40513561115 in words is "forty billion, five hundred thirteen million, five hundred sixty-one thousand, one hundred fifteen".