157775878 has 16 divisors (see below), whose sum is σ = 269861760. Its totient is φ = 68535936.

The previous prime is 157775857. The next prime is 157775879. The reversal of 157775878 is 878577751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157775879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178038 + ... + 178921.

It is an arithmetic number, because the mean of its divisors is an integer number (16866360).

Almost surely, 2^157775878 is an apocalyptic number.

157775878 is a deficient number, since it is larger than the sum of its proper divisors (112085882).

157775878 is a wasteful number, since it uses less digits than its factorization.

157775878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356991.

The product of its digits is 3841600, while the sum is 55.

The square root of 157775878 is about 12560.8868317488. The cubic root of 157775878 is about 540.3562783736.

The spelling of 157775878 in words is "one hundred fifty-seven million, seven hundred seventy-five thousand, eight hundred seventy-eight".