19490104252 has 6 divisors (see below), whose sum is σ = 34107682448. Its totient is φ = 9745052124.

The previous prime is 19490104241. The next prime is 19490104261. The reversal of 19490104252 is 25240109491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2436263028 + ... + 2436263035.

Almost surely, 2^19490104252 is an apocalyptic number.

It is an amenable number.

19490104252 is a deficient number, since it is larger than the sum of its proper divisors (14617578196).

19490104252 is a wasteful number, since it uses less digits than its factorization.

19490104252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4872526067 (or 4872526065 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 19490104252 in words is "nineteen billion, four hundred ninety million, one hundred four thousand, two hundred fifty-two".