9973768892 has 12 divisors (see below), whose sum is σ = 17455333896. Its totient is φ = 4986530640.

The previous prime is 9973768873. The next prime is 9973768897. The reversal of 9973768892 is 2988673799.

It is a super-2 number, since 2×9973768892² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9973768897) 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, 18959 + ... + 142502.

It is an arithmetic number, because the mean of its divisors is an integer number (1454611158).

Almost surely, 2^9973768892 is an apocalyptic number.

It is an amenable number.

9973768892 is a deficient number, since it is larger than the sum of its proper divisors (7481565004).

9973768892 is a wasteful number, since it uses less digits than its factorization.

9973768892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176908 (or 176906 counting only the distinct ones).

The product of its digits is 82301184, while the sum is 68.

The square root of 9973768892 is about 99868.7583381309. The cubic root of 9973768892 is about 2152.5492668773.

The spelling of 9973768892 in words is "nine billion, nine hundred seventy-three million, seven hundred sixty-eight thousand, eight hundred ninety-two".