61026615361 has 2 divisors, whose sum is σ = 61026615362. Its totient is φ = 61026615360.

The previous prime is 61026615343. The next prime is 61026615379. The reversal of 61026615361 is 16351662016.

It is a balanced prime because it is at equal distance from previous prime (61026615343) and next prime (61026615379).

It can be written as a sum of positive squares in only one way, i.e., 59087886400 + 1938728961 = 243080^2 + 44031^2 .

It is a cyclic number.

It is not a de Polignac number, because 61026615361 - 2⁷ = 61026615233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61026615361.

It is not a weakly prime, because it can be changed into another prime (61026615061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30513307680 + 30513307681.

It is an arithmetic number, because the mean of its divisors is an integer number (30513307681).

Almost surely, 2^61026615361 is an apocalyptic number.

It is an amenable number.

61026615361 is a deficient number, since it is larger than the sum of its proper divisors (1).

61026615361 is an equidigital number, since it uses as much as digits as its factorization.

61026615361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 61026615361 in words is "sixty-one billion, twenty-six million, six hundred fifteen thousand, three hundred sixty-one".