91300620122737 has 2 divisors, whose sum is σ = 91300620122738. Its totient is φ = 91300620122736.

The previous prime is 91300620122729. The next prime is 91300620122807. The reversal of 91300620122737 is 73722102600319.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73590250482576 + 17710369640161 = 8578476^2 + 4208369^2 .

It is a cyclic number.

It is not a de Polignac number, because 91300620122737 - 2³ = 91300620122729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91300620122693 and 91300620122702.

It is not a weakly prime, because it can be changed into another prime (91300620120737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45650310061368 + 45650310061369.

It is an arithmetic number, because the mean of its divisors is an integer number (45650310061369).

Almost surely, 2^{91300620122737} is an apocalyptic number.

It is an amenable number.

91300620122737 is a deficient number, since it is larger than the sum of its proper divisors (1).

91300620122737 is an equidigital number, since it uses as much as digits as its factorization.

91300620122737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 43.

The spelling of 91300620122737 in words is "ninety-one trillion, three hundred billion, six hundred twenty million, one hundred twenty-two thousand, seven hundred thirty-seven".