61374551611 has 2 divisors, whose sum is σ = 61374551612. Its totient is φ = 61374551610.

The previous prime is 61374551573. The next prime is 61374551663. The reversal of 61374551611 is 11615547316.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61374551611 - 2¹¹ = 61374549563 is a prime.

It is not a weakly prime, because it can be changed into another prime (61374551011) 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, 30687275805 + 30687275806.

It is an arithmetic number, because the mean of its divisors is an integer number (30687275806).

Almost surely, 2^61374551611 is an apocalyptic number.

61374551611 is a deficient number, since it is larger than the sum of its proper divisors (1).

61374551611 is an equidigital number, since it uses as much as digits as its factorization.

61374551611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 40.

The spelling of 61374551611 in words is "sixty-one billion, three hundred seventy-four million, five hundred fifty-one thousand, six hundred eleven".