19390000052 has 12 divisors (see below), whose sum is σ = 33934528320. Its totient is φ = 9694420536.

The previous prime is 19390000031. The next prime is 19390000057. The reversal of 19390000052 is 25000009391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19390000057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64652 + ... + 207267.

It is an arithmetic number, because the mean of its divisors is an integer number (2827877360).

Almost surely, 2^19390000052 is an apocalyptic number.

It is an amenable number.

19390000052 is a deficient number, since it is larger than the sum of its proper divisors (14544528268).

19390000052 is a wasteful number, since it uses less digits than its factorization.

19390000052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289750 (or 289748 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 29.

The spelling of 19390000052 in words is "nineteen billion, three hundred ninety million, fifty-two", and thus it is an aban number.