61746368669 has 4 divisors (see below), whose sum is σ = 61803174144. Its totient is φ = 61689563196.

The previous prime is 61746368659. The next prime is 61746368689. The reversal of 61746368669 is 96686364716.

61746368669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61746368669 - 2⁸ = 61746368413 is a prime.

It is a super-2 number, since 2×61746368669² (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 (61746368659) 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, 28401107 + ... + 28403280.

It is an arithmetic number, because the mean of its divisors is an integer number (15450793536).

Almost surely, 2^61746368669 is an apocalyptic number.

It is an amenable number.

61746368669 is a deficient number, since it is larger than the sum of its proper divisors (56805475).

61746368669 is a wasteful number, since it uses less digits than its factorization.

61746368669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56805474.

The product of its digits is 47029248, while the sum is 62.

The spelling of 61746368669 in words is "sixty-one billion, seven hundred forty-six million, three hundred sixty-eight thousand, six hundred sixty-nine".