61255936207 has 2 divisors, whose sum is σ = 61255936208. Its totient is φ = 61255936206.

The previous prime is 61255936201. The next prime is 61255936219. The reversal of 61255936207 is 70263955216.

61255936207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61255936207 - 2³ = 61255936199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61255936201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30627968103 + 30627968104.

It is an arithmetic number, because the mean of its divisors is an integer number (30627968104).

Almost surely, 2^61255936207 is an apocalyptic number.

61255936207 is a deficient number, since it is larger than the sum of its proper divisors (1).

61255936207 is an equidigital number, since it uses as much as digits as its factorization.

61255936207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 46.

The spelling of 61255936207 in words is "sixty-one billion, two hundred fifty-five million, nine hundred thirty-six thousand, two hundred seven".