61011695449 has 2 divisors, whose sum is σ = 61011695450. Its totient is φ = 61011695448.

The previous prime is 61011695419. The next prime is 61011695461. The reversal of 61011695449 is 94459611016.

61011695449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41226459849 + 19785235600 = 203043^2 + 140660^2 .

It is a cyclic number.

It is not a de Polignac number, because 61011695449 - 2²¹ = 61009598297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61011695399 and 61011695408.

It is not a weakly prime, because it can be changed into another prime (61011695419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30505847724 + 30505847725.

It is an arithmetic number, because the mean of its divisors is an integer number (30505847725).

Almost surely, 2^61011695449 is an apocalyptic number.

It is an amenable number.

61011695449 is a deficient number, since it is larger than the sum of its proper divisors (1).

61011695449 is an equidigital number, since it uses as much as digits as its factorization.

61011695449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 61011695449 in words is "sixty-one billion, eleven million, six hundred ninety-five thousand, four hundred forty-nine".