19942290262 has 4 divisors (see below), whose sum is σ = 29913435396. Its totient is φ = 9971145130.

The previous prime is 19942290233. The next prime is 19942290281. The reversal of 19942290262 is 26209224991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26209224991 = 29 ⋅903766379.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4985572564 + ... + 4985572567.

It is an arithmetic number, because the mean of its divisors is an integer number (7478358849).

Almost surely, 2^19942290262 is an apocalyptic number.

19942290262 is a deficient number, since it is larger than the sum of its proper divisors (9971145134).

19942290262 is an equidigital number, since it uses as much as digits as its factorization.

19942290262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9971145133.

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 19942290262 in words is "nineteen billion, nine hundred forty-two million, two hundred ninety thousand, two hundred sixty-two".