19860795305 has 32 divisors (see below), whose sum is σ = 26019753984. Its totient is φ = 14465799936.

The previous prime is 19860795293. The next prime is 19860795341. The reversal of 19860795305 is 50359706891.

It is a cyclic number.

It is not a de Polignac number, because 19860795305 - 2⁴ = 19860795289 is a prime.

It is a super-2 number, since 2×19860795305² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1421162 + ... + 1435068.

It is an arithmetic number, because the mean of its divisors is an integer number (813117312).

Almost surely, 2^19860795305 is an apocalyptic number.

It is an amenable number.

19860795305 is a deficient number, since it is larger than the sum of its proper divisors (6158958679).

19860795305 is a wasteful number, since it uses less digits than its factorization.

19860795305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14225.

The product of its (nonzero) digits is 2041200, while the sum is 53.

The spelling of 19860795305 in words is "nineteen billion, eight hundred sixty million, seven hundred ninety-five thousand, three hundred five".