385173730157 has 4 divisors (see below), whose sum is σ = 385241512320. Its totient is φ = 385105947996.

The previous prime is 385173730129. The next prime is 385173730171. The reversal of 385173730157 is 751037371583.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 385173730157 - 2⁶ = 385173730093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385173730757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33882557 + ... + 33893922.

It is an arithmetic number, because the mean of its divisors is an integer number (96310378080).

Almost surely, 2^385173730157 is an apocalyptic number.

It is an amenable number.

385173730157 is a deficient number, since it is larger than the sum of its proper divisors (67782163).

385173730157 is an equidigital number, since it uses as much as digits as its factorization.

385173730157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67782162.

The product of its (nonzero) digits is 1852200, while the sum is 50.

The spelling of 385173730157 in words is "three hundred eighty-five billion, one hundred seventy-three million, seven hundred thirty thousand, one hundred fifty-seven".