72050520361 has 2 divisors, whose sum is σ = 72050520362. Its totient is φ = 72050520360.

The previous prime is 72050520349. The next prime is 72050520391. The reversal of 72050520361 is 16302505027.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52283566336 + 19766954025 = 228656^2 + 140595^2 .

It is a cyclic number.

It is not a de Polignac number, because 72050520361 - 2¹³ = 72050512169 is a prime.

It is not a weakly prime, because it can be changed into another prime (72050520391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36025260180 + 36025260181.

It is an arithmetic number, because the mean of its divisors is an integer number (36025260181).

Almost surely, 2^72050520361 is an apocalyptic number.

It is an amenable number.

72050520361 is a deficient number, since it is larger than the sum of its proper divisors (1).

72050520361 is an equidigital number, since it uses as much as digits as its factorization.

72050520361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 31.

The spelling of 72050520361 in words is "seventy-two billion, fifty million, five hundred twenty thousand, three hundred sixty-one".