40604351615 has 4 divisors (see below), whose sum is σ = 48725221944. Its totient is φ = 32483481288.

The previous prime is 40604351597. The next prime is 40604351629. The reversal of 40604351615 is 51615340604.

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 40604351615 - 2¹² = 40604347519 is a prime.

It is a Duffinian number.

It is a congruent 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, 4060435157 + ... + 4060435166.

It is an arithmetic number, because the mean of its divisors is an integer number (12181305486).

Almost surely, 2^40604351615 is an apocalyptic number.

40604351615 is a deficient number, since it is larger than the sum of its proper divisors (8120870329).

40604351615 is an equidigital number, since it uses as much as digits as its factorization.

40604351615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8120870328.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 40604351615 in words is "forty billion, six hundred four million, three hundred fifty-one thousand, six hundred fifteen".