61498418627 has 2 divisors, whose sum is σ = 61498418628. Its totient is φ = 61498418626.

The previous prime is 61498418603. The next prime is 61498418677. The reversal of 61498418627 is 72681489416.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61498418627 is a prime.

It is not a weakly prime, because it can be changed into another prime (61498418677) 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, 30749209313 + 30749209314.

It is an arithmetic number, because the mean of its divisors is an integer number (30749209314).

Almost surely, 2^61498418627 is an apocalyptic number.

61498418627 is a deficient number, since it is larger than the sum of its proper divisors (1).

61498418627 is an equidigital number, since it uses as much as digits as its factorization.

61498418627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4644864, while the sum is 56.

The spelling of 61498418627 in words is "sixty-one billion, four hundred ninety-eight million, four hundred eighteen thousand, six hundred twenty-seven".