426881619 has 6 divisors (see below), whose sum is σ = 616606796. Its totient is φ = 284587740.

The previous prime is 426881593. The next prime is 426881621. The reversal of 426881619 is 916188624.

426881619 is a `hidden beast` number, since 4 + 26 + 8 + 8 + 1 + 619 = 666.

It is not a de Polignac number, because 426881619 - 2¹⁷ = 426750547 is a prime.

It is a super-3 number, since 3×426881619³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426881629) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23715637 + ... + 23715654.

Almost surely, 2^426881619 is an apocalyptic number.

426881619 is a deficient number, since it is larger than the sum of its proper divisors (189725177).

426881619 is a wasteful number, since it uses less digits than its factorization.

426881619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47431297 (or 47431294 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 426881619 is about 20661.1136921513. The cubic root of 426881619 is about 752.9552255616.

The spelling of 426881619 in words is "four hundred twenty-six million, eight hundred eighty-one thousand, six hundred nineteen".