39513513109 has 16 divisors (see below), whose sum is σ = 46384547328. Its totient is φ = 32961223152.

The previous prime is 39513513089. The next prime is 39513513131. The reversal of 39513513109 is 90131531593.

It is a cyclic number.

It is not a de Polignac number, because 39513513109 - 2¹¹ = 39513511061 is a prime.

It is a super-2 number, since 2×39513513109² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39513553109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 468607 + ... + 546460.

It is an arithmetic number, because the mean of its divisors is an integer number (2899034208).

Almost surely, 2^39513513109 is an apocalyptic number.

It is an amenable number.

39513513109 is a deficient number, since it is larger than the sum of its proper divisors (6871034219).

39513513109 is a wasteful number, since it uses less digits than its factorization.

39513513109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015224.

The product of its (nonzero) digits is 54675, while the sum is 40.

The spelling of 39513513109 in words is "thirty-nine billion, five hundred thirteen million, five hundred thirteen thousand, one hundred nine".