61343624645 has 16 divisors (see below), whose sum is σ = 77738355072. Its totient is φ = 46375644480.

The previous prime is 61343624627. The next prime is 61343624677. The reversal of 61343624645 is 54642634316.

It is not a de Polignac number, because 61343624645 - 2⁶ = 61343624581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61343624596 and 61343624605.

It is a congruent number.

It is an unprimeable number.

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, 3203846 + ... + 3222935.

It is an arithmetic number, because the mean of its divisors is an integer number (4858647192).

Almost surely, 2^61343624645 is an apocalyptic number.

It is an amenable number.

61343624645 is a deficient number, since it is larger than the sum of its proper divisors (16394730427).

61343624645 is a wasteful number, since it uses less digits than its factorization.

61343624645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6426892.

The product of its digits is 1244160, while the sum is 44.

The spelling of 61343624645 in words is "sixty-one billion, three hundred forty-three million, six hundred twenty-four thousand, six hundred forty-five".