8415157772 has 24 divisors (see below), whose sum is σ = 16852244640. Its totient is φ = 3601797120.

The previous prime is 8415157771. The next prime is 8415157801. The reversal of 8415157772 is 2777515148.

It is not an unprimeable number, because it can be changed into a prime (8415157771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173879 + ... + 216942.

It is an arithmetic number, because the mean of its divisors is an integer number (702176860).

Almost surely, 2^8415157772 is an apocalyptic number.

It is an amenable number.

8415157772 is an abundant number, since it is smaller than the sum of its proper divisors (8437086868).

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

8415157772 is a wasteful number, since it uses less digits than its factorization.

8415157772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391601 (or 391599 counting only the distinct ones).

The product of its digits is 548800, while the sum is 47.

The square root of 8415157772 is about 91734.1690538482. The cubic root of 8415157772 is about 2034.0147014585.

The spelling of 8415157772 in words is "eight billion, four hundred fifteen million, one hundred fifty-seven thousand, seven hundred seventy-two".