61627997089 has 8 divisors (see below), whose sum is σ = 63114776640. Its totient is φ = 60158406000.

The previous prime is 61627997077. The next prime is 61627997177. The reversal of 61627997089 is 98079972616.

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 61627997089 - 2¹⁷ = 61627866017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61627997089.

It is not an unprimeable number, because it can be changed into a prime (61627997009) 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, 4289859 + ... + 4304200.

It is an arithmetic number, because the mean of its divisors is an integer number (7889347080).

Almost surely, 2^61627997089 is an apocalyptic number.

It is an amenable number.

61627997089 is a deficient number, since it is larger than the sum of its proper divisors (1486779551).

61627997089 is a wasteful number, since it uses less digits than its factorization.

61627997089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8594231.

The product of its (nonzero) digits is 20575296, while the sum is 64.

The spelling of 61627997089 in words is "sixty-one billion, six hundred twenty-seven million, nine hundred ninety-seven thousand, eighty-nine".