157823672788 has 6 divisors (see below), whose sum is σ = 276191427386. Its totient is φ = 78911836392.

The previous prime is 157823672731. The next prime is 157823672807. The reversal of 157823672788 is 887276328751.

It can be written as a sum of positive squares in only one way, i.e., 131114961604 + 26708711184 = 362098^2 + 163428^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 19727959095 + ... + 19727959102.

Almost surely, 2^157823672788 is an apocalyptic number.

It is an amenable number.

157823672788 is a deficient number, since it is larger than the sum of its proper divisors (118367754598).

157823672788 is a wasteful number, since it uses less digits than its factorization.

157823672788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39455918201 (or 39455918199 counting only the distinct ones).

The product of its digits is 63221760, while the sum is 64.

The spelling of 157823672788 in words is "one hundred fifty-seven billion, eight hundred twenty-three million, six hundred seventy-two thousand, seven hundred eighty-eight".