19408806051 has 8 divisors (see below), whose sum is σ = 25900104720. Its totient is φ = 12928355712.

The previous prime is 19408806049. The next prime is 19408806061. The reversal of 19408806051 is 15060880491.

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

It is not a de Polignac number, because 19408806051 - 2¹ = 19408806049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19408805994 and 19408806012.

It is not an unprimeable number, because it can be changed into a prime (19408806061) 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, 2707906 + ... + 2715063.

It is an arithmetic number, because the mean of its divisors is an integer number (3237513090).

Almost surely, 2^19408806051 is an apocalyptic number.

19408806051 is a deficient number, since it is larger than the sum of its proper divisors (6491298669).

19408806051 is a wasteful number, since it uses less digits than its factorization.

19408806051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5424165.

The product of its (nonzero) digits is 69120, while the sum is 42.

The spelling of 19408806051 in words is "nineteen billion, four hundred eight million, eight hundred six thousand, fifty-one".