39135317811 has 32 divisors (see below), whose sum is σ = 57727488000. Its totient is φ = 23472190368.

The previous prime is 39135317791. The next prime is 39135317813. The reversal of 39135317811 is 11871353193.

39135317811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-39135317811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39135317813) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74850 + ... + 289608.

It is an arithmetic number, because the mean of its divisors is an integer number (1803984000).

Almost surely, 2^39135317811 is an apocalyptic number.

39135317811 is a deficient number, since it is larger than the sum of its proper divisors (18592170189).

39135317811 is a wasteful number, since it uses less digits than its factorization.

39135317811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214943.

The product of its digits is 68040, while the sum is 42.

The spelling of 39135317811 in words is "thirty-nine billion, one hundred thirty-five million, three hundred seventeen thousand, eight hundred eleven".