61362915589 has 4 divisors (see below), whose sum is σ = 61502694880. Its totient is φ = 61223136300.

The previous prime is 61362915571. The next prime is 61362915613. The reversal of 61362915589 is 98551926316.

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 a de Polignac number, because none of the positive numbers 2^k-61362915589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61362915989) 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, 69888987 + ... + 69889864.

It is an arithmetic number, because the mean of its divisors is an integer number (15375673720).

Almost surely, 2^61362915589 is an apocalyptic number.

It is an amenable number.

61362915589 is a deficient number, since it is larger than the sum of its proper divisors (139779291).

61362915589 is a wasteful number, since it uses less digits than its factorization.

61362915589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139779290.

The product of its digits is 3499200, while the sum is 55.

The spelling of 61362915589 in words is "sixty-one billion, three hundred sixty-two million, nine hundred fifteen thousand, five hundred eighty-nine".