8157430677 has 64 divisors (see below), whose sum is σ = 12851343360. Its totient is φ = 4550515200.

The previous prime is 8157430667. The next prime is 8157430709. The reversal of 8157430677 is 7760347518.

It is not a de Polignac number, because 8157430677 - 2¹² = 8157426581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8157430657) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10718977 + ... + 10719737.

It is an arithmetic number, because the mean of its divisors is an integer number (200802240).

Almost surely, 2^8157430677 is an apocalyptic number.

8157430677 is a gapful number since it is divisible by the number (87) formed by its first and last digit.

It is an amenable number.

8157430677 is a deficient number, since it is larger than the sum of its proper divisors (4693912683).

8157430677 is a wasteful number, since it uses less digits than its factorization.

8157430677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314.

The product of its (nonzero) digits is 987840, while the sum is 48.

The square root of 8157430677 is about 90318.4957636031. The cubic root of 8157430677 is about 2013.0340947428.

It can be divided in two parts, 8157 and 430677, that added together give a palindrome (438834).

The spelling of 8157430677 in words is "eight billion, one hundred fifty-seven million, four hundred thirty thousand, six hundred seventy-seven".