39631534949 has 8 divisors (see below), whose sum is σ = 40516658688. Its totient is φ = 38755046880.

The previous prime is 39631534933. The next prime is 39631534973. The reversal of 39631534949 is 94943513693.

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

It is a cyclic number.

It is not a de Polignac number, because 39631534949 - 2⁴ = 39631534933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39631534894 and 39631534903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39631534049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2149637 + ... + 2167994.

It is an arithmetic number, because the mean of its divisors is an integer number (5064582336).

Almost surely, 2^39631534949 is an apocalyptic number.

It is an amenable number.

39631534949 is a deficient number, since it is larger than the sum of its proper divisors (885123739).

39631534949 is a wasteful number, since it uses less digits than its factorization.

39631534949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4317835.

The product of its digits is 9447840, while the sum is 56.

The spelling of 39631534949 in words is "thirty-nine billion, six hundred thirty-one million, five hundred thirty-four thousand, nine hundred forty-nine".