73980192049 has 9 divisors (see below), whose sum is σ = 74747677729. Its totient is φ = 73220515600.

The previous prime is 73980191963. The next prime is 73980192053. The reversal of 73980192049 is 94029108937.

It is a happy number.

The square root of 73980192049 is 271993.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 16748242225 + 57231949824 = 129415^2 + 239232^2 .

It is not a de Polignac number, because 73980192049 - 2⁷ = 73980191921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73980191987 and 73980192005.

It is not an unprimeable number, because it can be changed into a prime (73980192059) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 27469947 + ... + 27472639.

Almost surely, 2^73980192049 is an apocalyptic number.

73980192049 is the 271993-rd square number.

73980192049 is the 135997-th centered octagonal number.

It is an amenable number.

73980192049 is a deficient number, since it is larger than the sum of its proper divisors (767485680).

73980192049 is an frugal number, since it uses more digits than its factorization.

73980192049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5588 (or 2794 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 52.

The spelling of 73980192049 in words is "seventy-three billion, nine hundred eighty million, one hundred ninety-two thousand, forty-nine".