61244356807 has 2 divisors, whose sum is σ = 61244356808. Its totient is φ = 61244356806.

The previous prime is 61244356799. The next prime is 61244356847. The reversal of 61244356807 is 70865344216.

61244356807 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 61244356807 - 2³ = 61244356799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61244356847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30622178403 + 30622178404.

It is an arithmetic number, because the mean of its divisors is an integer number (30622178404).

Almost surely, 2^61244356807 is an apocalyptic number.

61244356807 is a deficient number, since it is larger than the sum of its proper divisors (1).

61244356807 is an equidigital number, since it uses as much as digits as its factorization.

61244356807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 61244356807 in words is "sixty-one billion, two hundred forty-four million, three hundred fifty-six thousand, eight hundred seven".