39948257699 has 8 divisors (see below), whose sum is σ = 45658063968. Its totient is φ = 34239179520.

The previous prime is 39948257689. The next prime is 39948257737. The reversal of 39948257699 is 99675284993.

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

It is not a de Polignac number, because 39948257699 - 2⁸ = 39948257443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39948257639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58892 + ... + 288729.

It is an arithmetic number, because the mean of its divisors is an integer number (5707257996).

Almost surely, 2^39948257699 is an apocalyptic number.

39948257699 is a deficient number, since it is larger than the sum of its proper divisors (5709806269).

39948257699 is a wasteful number, since it uses less digits than its factorization.

39948257699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364045.

The product of its digits is 264539520, while the sum is 71.

The spelling of 39948257699 in words is "thirty-nine billion, nine hundred forty-eight million, two hundred fifty-seven thousand, six hundred ninety-nine".