19428424695 has 24 divisors (see below), whose sum is σ = 34923195216. Its totient is φ = 10361825856.

The previous prime is 19428424693. The next prime is 19428424727. The reversal of 19428424695 is 59642482491.

19428424695 is a `hidden beast` number, since 194 + 28 + 424 + 6 + 9 + 5 = 666.

It is not a de Polignac number, because 19428424695 - 2¹ = 19428424693 is a prime.

It is a super-2 number, since 2×19428424695² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19428424693) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7994022 + ... + 7996451.

It is an arithmetic number, because the mean of its divisors is an integer number (1455133134).

Almost surely, 2^19428424695 is an apocalyptic number.

19428424695 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19428424695 is a deficient number, since it is larger than the sum of its proper divisors (15494770521).

19428424695 is an equidigital number, since it uses as much as digits as its factorization.

19428424695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15990493 (or 15990481 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The spelling of 19428424695 in words is "nineteen billion, four hundred twenty-eight million, four hundred twenty-four thousand, six hundred ninety-five".