39924642049 has 16 divisors (see below), whose sum is σ = 42030503424. Its totient is φ = 37871308800.

The previous prime is 39924642029. The next prime is 39924642067. The reversal of 39924642049 is 94024642993.

It is a cyclic number.

It is not a de Polignac number, because 39924642049 - 2¹¹ = 39924640001 is a prime.

It is a super-3 number, since 3×39924642049³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39924641987 and 39924642005.

It is not an unprimeable number, because it can be changed into a prime (39924642019) 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, 1781377 + ... + 1803649.

It is an arithmetic number, because the mean of its divisors is an integer number (2626906464).

Almost surely, 2^39924642049 is an apocalyptic number.

It is an amenable number.

39924642049 is a deficient number, since it is larger than the sum of its proper divisors (2105861375).

39924642049 is a wasteful number, since it uses less digits than its factorization.

39924642049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23448.

The product of its (nonzero) digits is 3359232, while the sum is 52.

The spelling of 39924642049 in words is "thirty-nine billion, nine hundred twenty-four million, six hundred forty-two thousand, forty-nine".