39129012049 has 4 divisors (see below), whose sum is σ = 39254829120. Its totient is φ = 39003194980.

The previous prime is 39129012017. The next prime is 39129012067. The reversal of 39129012049 is 94021092193.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39129012049 - 2⁵ = 39129012017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39129012749) 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, 62908069 + ... + 62908690.

It is an arithmetic number, because the mean of its divisors is an integer number (9813707280).

Almost surely, 2^39129012049 is an apocalyptic number.

It is an amenable number.

39129012049 is a deficient number, since it is larger than the sum of its proper divisors (125817071).

39129012049 is a wasteful number, since it uses less digits than its factorization.

39129012049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125817070.

The product of its (nonzero) digits is 34992, while the sum is 40.

The spelling of 39129012049 in words is "thirty-nine billion, one hundred twenty-nine million, twelve thousand, forty-nine".