538673777251 has 8 divisors (see below), whose sum is σ = 551828595024. Its totient is φ = 525519742080.

The previous prime is 538673777171. The next prime is 538673777261. The reversal of 538673777251 is 152777376835.

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

It is a cyclic number.

It is not a de Polignac number, because 538673777251 - 2³⁷ = 401234823779 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 538673777251.

It is not an unprimeable number, because it can be changed into a prime (538673777261) 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, 1343896 + ... + 1698058.

It is an arithmetic number, because the mean of its divisors is an integer number (68978574378).

Almost surely, 2^538673777251 is an apocalyptic number.

538673777251 is a deficient number, since it is larger than the sum of its proper divisors (13154817773).

538673777251 is a wasteful number, since it uses less digits than its factorization.

538673777251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391301.

The product of its digits is 51861600, while the sum is 61.

The spelling of 538673777251 in words is "five hundred thirty-eight billion, six hundred seventy-three million, seven hundred seventy-seven thousand, two hundred fifty-one".