61608048899 has 4 divisors (see below), whose sum is σ = 63110684280. Its totient is φ = 60105413520.

The previous prime is 61608048863. The next prime is 61608048919. The reversal of 61608048899 is 99884080616.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61608048899 is a prime.

It is a super-2 number, since 2×61608048899² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61608048809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 751317629 + ... + 751317710.

It is an arithmetic number, because the mean of its divisors is an integer number (15777671070).

Almost surely, 2^61608048899 is an apocalyptic number.

61608048899 is a deficient number, since it is larger than the sum of its proper divisors (1502635381).

61608048899 is a wasteful number, since it uses less digits than its factorization.

61608048899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502635380.

The product of its (nonzero) digits is 5971968, while the sum is 59.

The spelling of 61608048899 in words is "sixty-one billion, six hundred eight million, forty-eight thousand, eight hundred ninety-nine".