61218800627 has 2 divisors, whose sum is σ = 61218800628. Its totient is φ = 61218800626.

The previous prime is 61218800593. The next prime is 61218800689. The reversal of 61218800627 is 72600881216.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61218800627 - 2¹² = 61218796531 is a prime.

It is not a weakly prime, because it can be changed into another prime (61218860627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30609400313 + 30609400314.

It is an arithmetic number, because the mean of its divisors is an integer number (30609400314).

Almost surely, 2^61218800627 is an apocalyptic number.

61218800627 is a deficient number, since it is larger than the sum of its proper divisors (1).

61218800627 is an equidigital number, since it uses as much as digits as its factorization.

61218800627 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 61218800627 in words is "sixty-one billion, two hundred eighteen million, eight hundred thousand, six hundred twenty-seven".