157863932789 has 4 divisors (see below), whose sum is σ = 157867117920. Its totient is φ = 157860747660.

The previous prime is 157863932761. The next prime is 157863932813. The reversal of 157863932789 is 987239368751.

157863932789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-157863932789 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 (157863932189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1517027 + ... + 1617744.

It is an arithmetic number, because the mean of its divisors is an integer number (39466779480).

Almost surely, 2^157863932789 is an apocalyptic number.

It is an amenable number.

157863932789 is a deficient number, since it is larger than the sum of its proper divisors (3185131).

157863932789 is an equidigital number, since it uses as much as digits as its factorization.

157863932789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185130.

The product of its digits is 137168640, while the sum is 68.

The spelling of 157863932789 in words is "one hundred fifty-seven billion, eight hundred sixty-three million, nine hundred thirty-two thousand, seven hundred eighty-nine".