64061622029 has 4 divisors (see below), whose sum is σ = 64064126940. Its totient is φ = 64059117120.

The previous prime is 64061622007. The next prime is 64061622073. The reversal of 64061622029 is 92022616046.

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

It can be written as a sum of positive squares in 2 ways, for example, as 41538516100 + 22523105929 = 203810^2 + 150077^2 .

It is a cyclic number.

It is not a de Polignac number, because 64061622029 - 2¹² = 64061617933 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64061621983 and 64061622001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64061622089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1213694 + ... + 1265375.

It is an arithmetic number, because the mean of its divisors is an integer number (16016031735).

Almost surely, 2^64061622029 is an apocalyptic number.

It is an amenable number.

64061622029 is a deficient number, since it is larger than the sum of its proper divisors (2504911).

64061622029 is a wasteful number, since it uses less digits than its factorization.

64061622029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2504910.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 64061622029 in words is "sixty-four billion, sixty-one million, six hundred twenty-two thousand, twenty-nine".