19402011274 has 16 divisors (see below), whose sum is σ = 29219066568. Its totient is φ = 9662349312.

The previous prime is 19402011269. The next prime is 19402011283. The reversal of 19402011274 is 47211020491.

It can be written as a sum of positive squares in 4 ways, for example, as 14912073225 + 4489938049 = 122115^2 + 67007^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2043402 + ... + 2052874.

Almost surely, 2^19402011274 is an apocalyptic number.

19402011274 is a deficient number, since it is larger than the sum of its proper divisors (9817055294).

19402011274 is a wasteful number, since it uses less digits than its factorization.

19402011274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13449.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 19402011274 in words is "nineteen billion, four hundred two million, eleven thousand, two hundred seventy-four".