40018736015 has 24 divisors (see below), whose sum is σ = 51082815552. Its totient is φ = 30090816000.

The previous prime is 40018736011. The next prime is 40018736027. The reversal of 40018736015 is 51063781004.

It is not a de Polignac number, because 40018736015 - 2² = 40018736011 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 (40018736011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1066757 + ... + 1103633.

It is an arithmetic number, because the mean of its divisors is an integer number (2128450648).

Almost surely, 2^40018736015 is an apocalyptic number.

40018736015 is a deficient number, since it is larger than the sum of its proper divisors (11064079537).

40018736015 is a wasteful number, since it uses less digits than its factorization.

40018736015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37667 (or 37650 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 40018736015 in words is "forty billion, eighteen million, seven hundred thirty-six thousand, fifteen".