8157764895 has 32 divisors (see below), whose sum is σ = 15139711488. Its totient is φ = 3673600128.

The previous prime is 8157764869. The next prime is 8157764897. The reversal of 8157764895 is 5984677518.

It is not a de Polignac number, because 8157764895 - 2⁷ = 8157764767 is a prime.

It is a super-2 number, since 2×8157764895² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8157764897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 572764 + ... + 586833.

It is an arithmetic number, because the mean of its divisors is an integer number (473115984).

Almost surely, 2^8157764895 is an apocalyptic number.

8157764895 is a deficient number, since it is larger than the sum of its proper divisors (6981946593).

8157764895 is a wasteful number, since it uses less digits than its factorization.

8157764895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159679.

The product of its digits is 16934400, while the sum is 60.

The square root of 8157764895 is about 90320.3459636864. The cubic root of 8157764895 is about 2013.0615863664.

The spelling of 8157764895 in words is "eight billion, one hundred fifty-seven million, seven hundred sixty-four thousand, eight hundred ninety-five".