854977728131 has 4 divisors (see below), whose sum is σ = 859754140200. Its totient is φ = 850201316064.

The previous prime is 854977728053. The next prime is 854977728173. The reversal of 854977728131 is 131827779458.

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

It is a cyclic number.

It is not a de Polignac number, because 854977728131 - 2¹⁸ = 854977465987 is a prime.

It is a super-2 number, since 2×854977728131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (854977728931) 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 3 ways as a sum of consecutive naturals, for example, 2388205766 + ... + 2388206123.

It is an arithmetic number, because the mean of its divisors is an integer number (214938535050).

Almost surely, 2^854977728131 is an apocalyptic number.

854977728131 is a deficient number, since it is larger than the sum of its proper divisors (4776412069).

854977728131 is a wasteful number, since it uses less digits than its factorization.

854977728131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4776412068.

The product of its digits is 23708160, while the sum is 62.

The spelling of 854977728131 in words is "eight hundred fifty-four billion, nine hundred seventy-seven million, seven hundred twenty-eight thousand, one hundred thirty-one".