8506178157 has 16 divisors (see below), whose sum is σ = 12014861760. Its totient is φ = 5334481152.

The previous prime is 8506178143. The next prime is 8506178281. The reversal of 8506178157 is 7518716058.

It is not a de Polignac number, because 8506178157 - 2⁴ = 8506178141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8506178117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60519 + ... + 143787.

It is an arithmetic number, because the mean of its divisors is an integer number (750928860).

Almost surely, 2^8506178157 is an apocalyptic number.

It is an amenable number.

8506178157 is a deficient number, since it is larger than the sum of its proper divisors (3508683603).

8506178157 is a wasteful number, since it uses less digits than its factorization.

8506178157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85292.

The product of its (nonzero) digits is 470400, while the sum is 48.

The square root of 8506178157 is about 92228.9442474541. The cubic root of 8506178157 is about 2041.3218842702.

The spelling of 8506178157 in words is "eight billion, five hundred six million, one hundred seventy-eight thousand, one hundred fifty-seven".