61588649473 has 8 divisors (see below), whose sum is σ = 69817092800. Its totient is φ = 53858899728.

The previous prime is 61588649471. The next prime is 61588649477. The reversal of 61588649473 is 37494688516.

It is a happy number.

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 61588649473 - 2¹ = 61588649471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61588649471) 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 7 ways as a sum of consecutive naturals, for example, 124673133 + ... + 124673626.

It is an arithmetic number, because the mean of its divisors is an integer number (8727136600).

Almost surely, 2^61588649473 is an apocalyptic number.

It is an amenable number.

61588649473 is a deficient number, since it is larger than the sum of its proper divisors (8228443327).

61588649473 is a wasteful number, since it uses less digits than its factorization.

61588649473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249346791.

The product of its digits is 34836480, while the sum is 61.

The spelling of 61588649473 in words is "sixty-one billion, five hundred eighty-eight million, six hundred forty-nine thousand, four hundred seventy-three".