19860980739 has 16 divisors (see below), whose sum is σ = 27101568384. Its totient is φ = 12930624000.

The previous prime is 19860980729. The next prime is 19860980767. The reversal of 19860980739 is 93708906891.

It is not a de Polignac number, because 19860980739 - 2²¹ = 19858883587 is a prime.

It is a super-2 number, since 2×19860980739² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19860980719) 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, 1371939 + ... + 1386339.

It is an arithmetic number, because the mean of its divisors is an integer number (1693848024).

Almost surely, 2^19860980739 is an apocalyptic number.

19860980739 is a deficient number, since it is larger than the sum of its proper divisors (7240587645).

19860980739 is a wasteful number, since it uses less digits than its factorization.

19860980739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25138.

The product of its (nonzero) digits is 5878656, while the sum is 60.

The spelling of 19860980739 in words is "nineteen billion, eight hundred sixty million, nine hundred eighty thousand, seven hundred thirty-nine".