19769055820087 has 54 divisors (see below), whose sum is σ = 23608135510232. Its totient is φ = 16215763898208.

The previous prime is 19769055820081. The next prime is 19769055820271. The reversal of 19769055820087 is 78002855096791.

It is not a de Polignac number, because 19769055820087 - 2³⁵ = 19734696081719 is a prime.

It is a super-2 number, since 2×19769055820087² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19769055820081) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 56971342248 + ... + 56971342594.

Almost surely, 2^{19769055820087} is an apocalyptic number.

19769055820087 is a deficient number, since it is larger than the sum of its proper divisors (3839079690145).

19769055820087 is an frugal number, since it uses more digits than its factorization.

19769055820087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 67.

The spelling of 19769055820087 in words is "nineteen trillion, seven hundred sixty-nine billion, fifty-five million, eight hundred twenty thousand, eighty-seven".