72301680274 has 4 divisors (see below), whose sum is σ = 108452520414. Its totient is φ = 36150840136.

The previous prime is 72301680271. The next prime is 72301680287. The reversal of 72301680274 is 47208610327.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 66752473225 + 5549207049 = 258365^2 + 74493^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (72301680271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18075420067 + ... + 18075420070.

Almost surely, 2^72301680274 is an apocalyptic number.

72301680274 is a deficient number, since it is larger than the sum of its proper divisors (36150840140).

72301680274 is a wasteful number, since it uses less digits than its factorization.

72301680274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36150840139.

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 72301680274 in words is "seventy-two billion, three hundred one million, six hundred eighty thousand, two hundred seventy-four".