72695728340041 has 3 divisors (see below), whose sum is σ = 72695736866221. Its totient is φ = 72695719813862.

The previous prime is 72695728340017. The next prime is 72695728340077. The reversal of 72695728340041 is 14004382759627.

The square root of 72695728340041 is 8526179.

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.

It is not a de Polignac number, because 72695728340041 - 2³⁹ = 72145972526153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72695758340041) 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, 4263090 + ... + 12789268.

It is a 1-persistent number, because it is pandigital, but 2⋅72695728340041 = 145391456680082 is not.

Almost surely, 2^{72695728340041} is an apocalyptic number.

72695728340041 is the 8526179-th square number.

72695728340041 is the 4263090-th centered octagonal number.

It is an amenable number.

72695728340041 is a deficient number, since it is larger than the sum of its proper divisors (8526180).

72695728340041 is an frugal number, since it uses more digits than its factorization.

72695728340041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17052358 (or 8526179 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 58.

The spelling of 72695728340041 in words is "seventy-two trillion, six hundred ninety-five billion, seven hundred twenty-eight million, three hundred forty thousand, forty-one".