40135824959 has 4 divisors (see below), whose sum is σ = 40137182400. Its totient is φ = 40134467520.

The previous prime is 40135824913. The next prime is 40135824973. The reversal of 40135824959 is 95942853104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40135824959 is a prime.

It is a super-2 number, since 2×40135824959² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40135824359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633359 + ... + 693840.

It is an arithmetic number, because the mean of its divisors is an integer number (10034295600).

Almost surely, 2^40135824959 is an apocalyptic number.

40135824959 is a deficient number, since it is larger than the sum of its proper divisors (1357441).

40135824959 is a wasteful number, since it uses less digits than its factorization.

40135824959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357440.

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 40135824959 in words is "forty billion, one hundred thirty-five million, eight hundred twenty-four thousand, nine hundred fifty-nine".