72315770636141 has 2 divisors, whose sum is σ = 72315770636142. Its totient is φ = 72315770636140.

The previous prime is 72315770636089. The next prime is 72315770636173. The reversal of 72315770636141 is 14163607751327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58214168492041 + 14101602144100 = 7629821^2 + 3755210^2 .

It is a cyclic number.

It is not a de Polignac number, because 72315770636141 - 2¹⁰ = 72315770635117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72315770636441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36157885318070 + 36157885318071.

It is an arithmetic number, because the mean of its divisors is an integer number (36157885318071).

Almost surely, 2^{72315770636141} is an apocalyptic number.

It is an amenable number.

72315770636141 is a deficient number, since it is larger than the sum of its proper divisors (1).

72315770636141 is an equidigital number, since it uses as much as digits as its factorization.

72315770636141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4445280, while the sum is 53.

The spelling of 72315770636141 in words is "seventy-two trillion, three hundred fifteen billion, seven hundred seventy million, six hundred thirty-six thousand, one hundred forty-one".