61876396297 has 2 divisors, whose sum is σ = 61876396298. Its totient is φ = 61876396296.

The previous prime is 61876396279. The next prime is 61876396367. The reversal of 61876396297 is 79269367816.

It is a happy number.

Together with previous prime (61876396279) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37208866816 + 24667529481 = 192896^2 + 157059^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61876396297 is a prime.

It is not a weakly prime, because it can be changed into another prime (61876396217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30938198148 + 30938198149.

It is an arithmetic number, because the mean of its divisors is an integer number (30938198149).

Almost surely, 2^61876396297 is an apocalyptic number.

It is an amenable number.

61876396297 is a deficient number, since it is larger than the sum of its proper divisors (1).

61876396297 is an equidigital number, since it uses as much as digits as its factorization.

61876396297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41150592, while the sum is 64.

The spelling of 61876396297 in words is "sixty-one billion, eight hundred seventy-six million, three hundred ninety-six thousand, two hundred ninety-seven".