19860848745 has 32 divisors (see below), whose sum is σ = 33104211840. Its totient is φ = 10158927360.

The previous prime is 19860848743. The next prime is 19860848753. The reversal of 19860848745 is 54784806891.

It is not a de Polignac number, because 19860848745 - 2¹ = 19860848743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19860848743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 237394 + ... + 309963.

It is an arithmetic number, because the mean of its divisors is an integer number (1034506620).

Almost surely, 2^19860848745 is an apocalyptic number.

19860848745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19860848745 is a deficient number, since it is larger than the sum of its proper divisors (13243363095).

19860848745 is a wasteful number, since it uses less digits than its factorization.

19860848745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547465.

The product of its (nonzero) digits is 15482880, while the sum is 60.

The spelling of 19860848745 in words is "nineteen billion, eight hundred sixty million, eight hundred forty-eight thousand, seven hundred forty-five".