19230399552 has 112 divisors (see below), whose sum is σ = 62622127232. Its totient is φ = 5071749120.

The previous prime is 19230399547. The next prime is 19230399599. The reversal of 19230399552 is 25599303291.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 532849 + ... + 567792.

It is an arithmetic number, because the mean of its divisors is an integer number (559126136).

Almost surely, 2^19230399552 is an apocalyptic number.

19230399552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19230399552 is an abundant number, since it is smaller than the sum of its proper divisors (43391727680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19230399552 is a wasteful number, since it uses less digits than its factorization.

19230399552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100676 (or 1100666 counting only the distinct ones).

The product of its (nonzero) digits is 656100, while the sum is 48.

The spelling of 19230399552 in words is "nineteen billion, two hundred thirty million, three hundred ninety-nine thousand, five hundred fifty-two".