61085062397 has 2 divisors, whose sum is σ = 61085062398. Its totient is φ = 61085062396.

The previous prime is 61085062327. The next prime is 61085062403. The reversal of 61085062397 is 79326058016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33853792036 + 27231270361 = 183994^2 + 165019^2 .

It is a cyclic number.

It is not a de Polignac number, because 61085062397 - 2¹² = 61085058301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61085062327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30542531198 + 30542531199.

It is an arithmetic number, because the mean of its divisors is an integer number (30542531199).

Almost surely, 2^61085062397 is an apocalyptic number.

It is an amenable number.

61085062397 is a deficient number, since it is larger than the sum of its proper divisors (1).

61085062397 is an equidigital number, since it uses as much as digits as its factorization.

61085062397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 61085062397 in words is "sixty-one billion, eighty-five million, sixty-two thousand, three hundred ninety-seven".