61964614111 has 4 divisors (see below), whose sum is σ = 64658727792. Its totient is φ = 59270500432.

The previous prime is 61964614093. The next prime is 61964614169. The reversal of 61964614111 is 11141646916.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61964614111 - 2⁵ = 61964614079 is a prime.

It is a super-2 number, since 2×61964614111² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61964614181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1347056806 + ... + 1347056851.

It is an arithmetic number, because the mean of its divisors is an integer number (16164681948).

Almost surely, 2^61964614111 is an apocalyptic number.

61964614111 is a deficient number, since it is larger than the sum of its proper divisors (2694113681).

61964614111 is a wasteful number, since it uses less digits than its factorization.

61964614111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2694113680.

The product of its digits is 31104, while the sum is 40.

The spelling of 61964614111 in words is "sixty-one billion, nine hundred sixty-four million, six hundred fourteen thousand, one hundred eleven".