19899860701 has 16 divisors (see below), whose sum is σ = 23366583040. Its totient is φ = 16589473920.

The previous prime is 19899860689. The next prime is 19899860711. The reversal of 19899860701 is 10706899891.

It is not a de Polignac number, because 19899860701 - 2¹¹ = 19899858653 is a prime.

It is a super-2 number, since 2×19899860701² (a number of 21 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 (19899860711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 709105 + ... + 736633.

It is an arithmetic number, because the mean of its divisors is an integer number (1460411440).

Almost surely, 2^19899860701 is an apocalyptic number.

It is an amenable number.

19899860701 is a deficient number, since it is larger than the sum of its proper divisors (3466722339).

19899860701 is a wasteful number, since it uses less digits than its factorization.

19899860701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30364.

The product of its (nonzero) digits is 1959552, while the sum is 58.

The spelling of 19899860701 in words is "nineteen billion, eight hundred ninety-nine million, eight hundred sixty thousand, seven hundred one".