19973341512 has 48 divisors (see below), whose sum is σ = 54247777740. Its totient is φ = 6638911488.

The previous prime is 19973341483. The next prime is 19973341513. The reversal of 19973341512 is 21514337991.

19973341512 is a `hidden beast` number, since 1 + 9 + 97 + 3 + 3 + 41 + 512 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19764423396 + 208918116 = 140586^2 + 14454^2 .

It is a super-2 number, since 2×19973341512² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19973341513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 367513 + ... + 418344.

Almost surely, 2^19973341512 is an apocalyptic number.

19973341512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19973341512 is an abundant number, since it is smaller than the sum of its proper divisors (34274436228).

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

19973341512 is a wasteful number, since it uses less digits than its factorization.

19973341512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786222 (or 786215 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The spelling of 19973341512 in words is "nineteen billion, nine hundred seventy-three million, three hundred forty-one thousand, five hundred twelve".