61695525659 has 8 divisors (see below), whose sum is σ = 63120576960. Its totient is φ = 60286576896.

The previous prime is 61695525649. The next prime is 61695525691. The reversal of 61695525659 is 95652559616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61695525659 - 2⁸ = 61695525403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61695525598 and 61695525607.

It is not an unprimeable number, because it can be changed into a prime (61695525649) 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 7 ways as a sum of consecutive naturals, for example, 4017884 + ... + 4033209.

It is an arithmetic number, because the mean of its divisors is an integer number (7890072120).

Almost surely, 2^61695525659 is an apocalyptic number.

61695525659 is a deficient number, since it is larger than the sum of its proper divisors (1425051301).

61695525659 is an equidigital number, since it uses as much as digits as its factorization.

61695525659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8051269.

The product of its digits is 21870000, while the sum is 59.

The spelling of 61695525659 in words is "sixty-one billion, six hundred ninety-five million, five hundred twenty-five thousand, six hundred fifty-nine".