72545571411337 has 2 divisors, whose sum is σ = 72545571411338. Its totient is φ = 72545571411336.

The previous prime is 72545571411331. The next prime is 72545571411359. The reversal of 72545571411337 is 73311417554527.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40119505328016 + 32426066083321 = 6333996^2 + 5694389^2 .

It is an emirp because it is prime and its reverse (73311417554527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72545571411337 - 2²⁷ = 72545437193609 is a prime.

It is not a weakly prime, because it can be changed into another prime (72545571411331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36272785705668 + 36272785705669.

It is an arithmetic number, because the mean of its divisors is an integer number (36272785705669).

Almost surely, 2^{72545571411337} is an apocalyptic number.

It is an amenable number.

72545571411337 is a deficient number, since it is larger than the sum of its proper divisors (1).

72545571411337 is an equidigital number, since it uses as much as digits as its factorization.

72545571411337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12348000, while the sum is 55.

The spelling of 72545571411337 in words is "seventy-two trillion, five hundred forty-five billion, five hundred seventy-one million, four hundred eleven thousand, three hundred thirty-seven".