20087819337 has 16 divisors (see below), whose sum is σ = 27119271872. Its totient is φ = 13224729600.

The previous prime is 20087819309. The next prime is 20087819341. The reversal of 20087819337 is 73391878002.

It is not a de Polignac number, because 20087819337 - 2⁶ = 20087819273 is a prime.

It is a super-2 number, since 2×20087819337² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20087819387) 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 15 ways as a sum of consecutive naturals, for example, 57462 + ... + 208512.

It is an arithmetic number, because the mean of its divisors is an integer number (1694954492).

Almost surely, 2^20087819337 is an apocalyptic number.

It is an amenable number.

20087819337 is a deficient number, since it is larger than the sum of its proper divisors (7031452535).

20087819337 is a wasteful number, since it uses less digits than its factorization.

20087819337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151608.

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 20087819337 in words is "twenty billion, eighty-seven million, eight hundred nineteen thousand, three hundred thirty-seven".