72834674641 has 3 divisors (see below), whose sum is σ = 72834944521. Its totient is φ = 72834404762.

The previous prime is 72834674621. The next prime is 72834674687. The reversal of 72834674641 is 14647643827.

The square root of 72834674641 is 269879.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 14647643827 = 79 ⋅185413213.

It is not a de Polignac number, because 72834674641 - 2⁷ = 72834674513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72834674611) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 134940 + ... + 404818.

Almost surely, 2^72834674641 is an apocalyptic number.

72834674641 is the 269879-th square number.

72834674641 is the 134940-th centered octagonal number.

It is an amenable number.

72834674641 is a deficient number, since it is larger than the sum of its proper divisors (269880).

72834674641 is an frugal number, since it uses more digits than its factorization.

72834674641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539758 (or 269879 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 52.

The spelling of 72834674641 in words is "seventy-two billion, eight hundred thirty-four million, six hundred seventy-four thousand, six hundred forty-one".