19082935881 has 15 divisors (see below), whose sum is σ = 28508465271. Its totient is φ = 12721128408.

The previous prime is 19082935871. The next prime is 19082935939. The reversal of 19082935881 is 18853928091.

The square root of 19082935881 is 138141.

It is a perfect power (a square), and thus also a powerful number.

19082935881 is a `hidden beast` number, since 190 + 8 + 29 + 358 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6345556281 + 12737379600 = 79659^2 + 112860^2 .

It is not a de Polignac number, because 19082935881 - 2²³ = 19074547273 is a prime.

It is a super-2 number, since 2×19082935881² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19082935871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1235595 + ... + 1250943.

Almost surely, 2^19082935881 is an apocalyptic number.

19082935881 is the 138141-st square number.

19082935881 is the 69071-st centered octagonal number.

It is an amenable number.

19082935881 is a deficient number, since it is larger than the sum of its proper divisors (9425529390).

19082935881 is an frugal number, since it uses more digits than its factorization.

19082935881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30710 (or 15352 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 54.

The spelling of 19082935881 in words is "nineteen billion, eighty-two million, nine hundred thirty-five thousand, eight hundred eighty-one".