55973967779 has 8 divisors (see below), whose sum is σ = 58410443520. Its totient is φ = 53537727496.

The previous prime is 55973967773. The next prime is 55973967781. The reversal of 55973967779 is 97776937955.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55973967779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55973967773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569984 + ... + 660930.

It is an arithmetic number, because the mean of its divisors is an integer number (7301305440).

Almost surely, 2^55973967779 is an apocalyptic number.

55973967779 is a deficient number, since it is larger than the sum of its proper divisors (2436475741).

55973967779 is a wasteful number, since it uses less digits than its factorization.

55973967779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117729.

The product of its digits is 787648050, while the sum is 74.

The spelling of 55973967779 in words is "fifty-five billion, nine hundred seventy-three million, nine hundred sixty-seven thousand, seven hundred seventy-nine".