19381417212 has 24 divisors (see below), whose sum is σ = 45229556736. Its totient is φ = 6459579568.

The previous prime is 19381417207. The next prime is 19381417261. The reversal of 19381417212 is 21271418391.

It is a congruent number.

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, 18018 + ... + 197705.

It is an arithmetic number, because the mean of its divisors is an integer number (1884564864).

Almost surely, 2^19381417212 is an apocalyptic number.

19381417212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19381417212 is an abundant number, since it is smaller than the sum of its proper divisors (25848139524).

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

19381417212 is a wasteful number, since it uses less digits than its factorization.

19381417212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223217 (or 223215 counting only the distinct ones).

The product of its digits is 24192, while the sum is 39.

The spelling of 19381417212 in words is "nineteen billion, three hundred eighty-one million, four hundred seventeen thousand, two hundred twelve".