19950912887 has 8 divisors (see below), whose sum is σ = 21146358816. Its totient is φ = 18757896192.

The previous prime is 19950912859. The next prime is 19950912899. The reversal of 19950912887 is 78821905991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19950912887 - 2³⁰ = 18877171063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19950912847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 590378 + ... + 623255.

It is an arithmetic number, because the mean of its divisors is an integer number (2643294852).

Almost surely, 2^19950912887 is an apocalyptic number.

19950912887 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

19950912887 is a deficient number, since it is larger than the sum of its proper divisors (1195445929).

19950912887 is a wasteful number, since it uses less digits than its factorization.

19950912887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214617.

The product of its (nonzero) digits is 3265920, while the sum is 59.

The spelling of 19950912887 in words is "nineteen billion, nine hundred fifty million, nine hundred twelve thousand, eight hundred eighty-seven".