8157277460 has 48 divisors (see below), whose sum is σ = 17706366720. Its totient is φ = 3154995840.

The previous prime is 8157277459. The next prime is 8157277463. The reversal of 8157277460 is 647727518.

It is a happy number.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8157277463) 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, 15317 + ... + 128643.

It is an arithmetic number, because the mean of its divisors is an integer number (368882640).

Almost surely, 2^8157277460 is an apocalyptic number.

It is an amenable number.

8157277460 is an abundant number, since it is smaller than the sum of its proper divisors (9549089260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8157277460 is a wasteful number, since it uses less digits than its factorization.

8157277460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113456 (or 113454 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 47.

The square root of 8157277460 is about 90317.6475557241. The cubic root of 8157277460 is about 2013.0214913882.

The spelling of 8157277460 in words is "eight billion, one hundred fifty-seven million, two hundred seventy-seven thousand, four hundred sixty".