39120979398519 has 4 divisors (see below), whose sum is σ = 52161305864696. Its totient is φ = 26080652932344.

The previous prime is 39120979398491. The next prime is 39120979398533. The reversal of 39120979398519 is 91589397902193.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 39120979398519 - 2¹² = 39120979394423 is a prime.

It is a super-2 number, since 2×39120979398519² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39120979398619) 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, 6520163233084 + ... + 6520163233089.

It is an arithmetic number, because the mean of its divisors is an integer number (13040326466174).

Almost surely, 2^{39120979398519} is an apocalyptic number.

39120979398519 is a deficient number, since it is larger than the sum of its proper divisors (13040326466177).

39120979398519 is a wasteful number, since it uses less digits than its factorization.

39120979398519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13040326466176.

The product of its (nonzero) digits is 297606960, while the sum is 75.

The spelling of 39120979398519 in words is "thirty-nine trillion, one hundred twenty billion, nine hundred seventy-nine million, three hundred ninety-eight thousand, five hundred nineteen".