40347078615 has 64 divisors (see below), whose sum is σ = 74213990400. Its totient is φ = 20775916800.

The previous prime is 40347078599. The next prime is 40347078641. The reversal of 40347078615 is 51687074304.

It is not a de Polignac number, because 40347078615 - 2⁴ = 40347078599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1826235 + ... + 1848195.

It is an arithmetic number, because the mean of its divisors is an integer number (1159593600).

Almost surely, 2^40347078615 is an apocalyptic number.

40347078615 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40347078615 is a deficient number, since it is larger than the sum of its proper divisors (33866911785).

40347078615 is a wasteful number, since it uses less digits than its factorization.

40347078615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22445 (or 22439 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 40347078615 in words is "forty billion, three hundred forty-seven million, seventy-eight thousand, six hundred fifteen".