20468392819 has 8 divisors (see below), whose sum is σ = 24768475488. Its totient is φ = 16512316800.

The previous prime is 20468392817. The next prime is 20468392849. The reversal of 20468392819 is 91829386402.

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

It is not a de Polignac number, because 20468392819 - 2¹ = 20468392817 is a prime.

It is a super-2 number, since 2×20468392819² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20468392817) 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, 86001532 + ... + 86001769.

It is an arithmetic number, because the mean of its divisors is an integer number (3096059436).

Almost surely, 2^20468392819 is an apocalyptic number.

20468392819 is a deficient number, since it is larger than the sum of its proper divisors (4300082669).

20468392819 is a wasteful number, since it uses less digits than its factorization.

20468392819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172003325.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 20468392819 in words is "twenty billion, four hundred sixty-eight million, three hundred ninety-two thousand, eight hundred nineteen".