40537647393 has 8 divisors (see below), whose sum is σ = 54051634656. Its totient is φ = 27024379200.

The previous prime is 40537647379. The next prime is 40537647421. The reversal of 40537647393 is 39374673504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40537647393 - 2⁶ = 40537647329 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40537647193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30523 + ... + 286368.

It is an arithmetic number, because the mean of its divisors is an integer number (6756454332).

Almost surely, 2^40537647393 is an apocalyptic number.

It is an amenable number.

40537647393 is a deficient number, since it is larger than the sum of its proper divisors (13513987263).

40537647393 is a wasteful number, since it uses less digits than its factorization.

40537647393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359535.

The product of its (nonzero) digits is 5715360, while the sum is 51.

The spelling of 40537647393 in words is "forty billion, five hundred thirty-seven million, six hundred forty-seven thousand, three hundred ninety-three".