505670779371 has 8 divisors (see below), whose sum is σ = 713888159184. Its totient is φ = 317283626240.

The previous prime is 505670779343. The next prime is 505670779373. The reversal of 505670779371 is 173977076505.

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

It is not a de Polignac number, because 505670779371 - 2¹⁸ = 505670517227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505670779373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4957556610 + ... + 4957556711.

It is an arithmetic number, because the mean of its divisors is an integer number (89236019898).

Almost surely, 2^505670779371 is an apocalyptic number.

505670779371 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

505670779371 is a deficient number, since it is larger than the sum of its proper divisors (208217379813).

505670779371 is a wasteful number, since it uses less digits than its factorization.

505670779371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9915113341.

The product of its (nonzero) digits is 9724050, while the sum is 57.

The spelling of 505670779371 in words is "five hundred five billion, six hundred seventy million, seven hundred seventy-nine thousand, three hundred seventy-one".