19886130537 has 16 divisors (see below), whose sum is σ = 32633650560. Its totient is φ = 10489387392.

The previous prime is 19886130499. The next prime is 19886130553. The reversal of 19886130537 is 73503168891.

It is not a de Polignac number, because 19886130537 - 2¹¹ = 19886128489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19886130537.

It is not an unprimeable number, because it can be changed into a prime (19886130557) 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, 36421212 + ... + 36421757.

It is an arithmetic number, because the mean of its divisors is an integer number (2039603160).

Almost surely, 2^19886130537 is an apocalyptic number.

It is an amenable number.

19886130537 is a deficient number, since it is larger than the sum of its proper divisors (12747520023).

19886130537 is a wasteful number, since it uses less digits than its factorization.

19886130537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72842992.

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 19886130537 in words is "nineteen billion, eight hundred eighty-six million, one hundred thirty thousand, five hundred thirty-seven".