157858884169 has 16 divisors (see below), whose sum is σ = 185989888000. Its totient is φ = 133912662912.

The previous prime is 157858884151. The next prime is 157858884191. The reversal of 157858884169 is 961488858751.

It is a happy number.

It is not a de Polignac number, because 157858884169 - 2¹¹ = 157858882121 is a prime.

It is a super-2 number, since 2×157858884169² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 157858884098 and 157858884107.

It is not an unprimeable number, because it can be changed into a prime (157858884109) 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 15 ways as a sum of consecutive naturals, for example, 2339049 + ... + 2405590.

It is an arithmetic number, because the mean of its divisors is an integer number (11624368000).

Almost surely, 2^157858884169 is an apocalyptic number.

It is an amenable number.

157858884169 is a deficient number, since it is larger than the sum of its proper divisors (28131003831).

157858884169 is an frugal number, since it uses more digits than its factorization.

157858884169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4744757 (or 4744743 counting only the distinct ones).

The product of its digits is 154828800, while the sum is 70.

The spelling of 157858884169 in words is "one hundred fifty-seven billion, eight hundred fifty-eight million, eight hundred eighty-four thousand, one hundred sixty-nine".