61969694835 has 16 divisors (see below), whose sum is σ = 100133212320. Its totient is φ = 32723270400.

The previous prime is 61969694833. The next prime is 61969694837. The reversal of 61969694835 is 53849696916.

It is an interprime number because it is at equal distance from previous prime (61969694833) and next prime (61969694837).

It is not a de Polignac number, because 61969694835 - 2¹ = 61969694833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61969694833) 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 in 15 ways as a sum of consecutive naturals, for example, 20450530 + ... + 20453559.

It is an arithmetic number, because the mean of its divisors is an integer number (6258325770).

Almost surely, 2^61969694835 is an apocalyptic number.

61969694835 is a deficient number, since it is larger than the sum of its proper divisors (38163517485).

61969694835 is a wasteful number, since it uses less digits than its factorization.

61969694835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40904198.

The product of its digits is 75582720, while the sum is 66.

The spelling of 61969694835 in words is "sixty-one billion, nine hundred sixty-nine million, six hundred ninety-four thousand, eight hundred thirty-five".