73828974961 has 4 divisors (see below), whose sum is σ = 84375971392. Its totient is φ = 63281978532.

The previous prime is 73828974953. The next prime is 73828974983. The reversal of 73828974961 is 16947982837.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73828974961 - 2³ = 73828974953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73828974893 and 73828974902.

It is not an unprimeable number, because it can be changed into a prime (73828974991) 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, 5273498205 + ... + 5273498218.

It is an arithmetic number, because the mean of its divisors is an integer number (21093992848).

Almost surely, 2^73828974961 is an apocalyptic number.

It is an amenable number.

73828974961 is a deficient number, since it is larger than the sum of its proper divisors (10546996431).

73828974961 is a wasteful number, since it uses less digits than its factorization.

73828974961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10546996430.

The product of its digits is 36578304, while the sum is 64.

The spelling of 73828974961 in words is "seventy-three billion, eight hundred twenty-eight million, nine hundred seventy-four thousand, nine hundred sixty-one".