61330522469 has 4 divisors (see below), whose sum is σ = 61333705344. Its totient is φ = 61327339596.

The previous prime is 61330522411. The next prime is 61330522501. The reversal of 61330522469 is 96422503316.

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 61330522469 - 2²⁸ = 61062087013 is a prime.

It is a super-2 number, since 2×61330522469² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61330522069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1562357 + ... + 1601130.

It is an arithmetic number, because the mean of its divisors is an integer number (15333426336).

Almost surely, 2^61330522469 is an apocalyptic number.

It is an amenable number.

61330522469 is a deficient number, since it is larger than the sum of its proper divisors (3182875).

61330522469 is a wasteful number, since it uses less digits than its factorization.

61330522469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3182874.

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 61330522469 in words is "sixty-one billion, three hundred thirty million, five hundred twenty-two thousand, four hundred sixty-nine".