157726768 has 20 divisors (see below), whose sum is σ = 306487080. Its totient is φ = 78633344.

The previous prime is 157726757. The next prime is 157726769. The reversal of 157726768 is 867627751.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (157726769) 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, 8653 + ... + 19756.

It is an arithmetic number, because the mean of its divisors is an integer number (15324354).

Almost surely, 2^157726768 is an apocalyptic number.

It is an amenable number.

157726768 is a deficient number, since it is larger than the sum of its proper divisors (148760312).

157726768 is a wasteful number, since it uses less digits than its factorization.

157726768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28764 (or 28758 counting only the distinct ones).

The product of its digits is 987840, while the sum is 49.

The square root of 157726768 is about 12558.9318017099. The cubic root of 157726768 is about 540.3002080140.

The spelling of 157726768 in words is "one hundred fifty-seven million, seven hundred twenty-six thousand, seven hundred sixty-eight".