19487093151 has 4 divisors (see below), whose sum is σ = 25982790872. Its totient is φ = 12991395432.

The previous prime is 19487093111. The next prime is 19487093201. The reversal of 19487093151 is 15139078491.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 19487093151 - 2⁷ = 19487093023 is a prime.

It is a super-2 number, since 2×19487093151² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19487093151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19487093111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3247848856 + ... + 3247848861.

It is an arithmetic number, because the mean of its divisors is an integer number (6495697718).

Almost surely, 2^19487093151 is an apocalyptic number.

19487093151 is a deficient number, since it is larger than the sum of its proper divisors (6495697721).

19487093151 is an equidigital number, since it uses as much as digits as its factorization.

19487093151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6495697720.

The product of its (nonzero) digits is 272160, while the sum is 48.

The spelling of 19487093151 in words is "nineteen billion, four hundred eighty-seven million, ninety-three thousand, one hundred fifty-one".