19385475030 has 48 divisors (see below), whose sum is σ = 50474299824. Its totient is φ = 5162068800.

The previous prime is 19385475029. The next prime is 19385475073. The reversal of 19385475030 is 3057458391.

19385475030 is a `hidden beast` number, since 1 + 93 + 8 + 54 + 7 + 503 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90544 + ... + 216723.

It is an arithmetic number, because the mean of its divisors is an integer number (1051547913).

Almost surely, 2^19385475030 is an apocalyptic number.

19385475030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19385475030 is an abundant number, since it is smaller than the sum of its proper divisors (31088824794).

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

19385475030 is a wasteful number, since it uses less digits than its factorization.

19385475030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307981 (or 307978 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 19385475030 in words is "nineteen billion, three hundred eighty-five million, four hundred seventy-five thousand, thirty".