157778468 has 24 divisors (see below), whose sum is σ = 286185984. Its totient is φ = 76032000.

The previous prime is 157778447. The next prime is 157778497. The reversal of 157778468 is 864877751.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29393 + ... + 34343.

It is an arithmetic number, because the mean of its divisors is an integer number (11924416).

Almost surely, 2^157778468 is an apocalyptic number.

It is an amenable number.

157778468 is a deficient number, since it is larger than the sum of its proper divisors (128407516).

157778468 is a wasteful number, since it uses less digits than its factorization.

157778468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5243 (or 5241 counting only the distinct ones).

The product of its digits is 2634240, while the sum is 53.

The square root of 157778468 is about 12560.9899291417. The cubic root of 157778468 is about 540.3592351313.

The spelling of 157778468 in words is "one hundred fifty-seven million, seven hundred seventy-eight thousand, four hundred sixty-eight".