8151774440 has 32 divisors (see below), whose sum is σ = 19306836000. Its totient is φ = 3089093184.

The previous prime is 8151774437. The next prime is 8151774443. The reversal of 8151774440 is 444771518.

It is an interprime number because it is at equal distance from previous prime (8151774437) and next prime (8151774443).

It is not an unprimeable number, because it can be changed into a prime (8151774443) 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, 5362250 + ... + 5363769.

It is an arithmetic number, because the mean of its divisors is an integer number (603338625).

Almost surely, 2^8151774440 is an apocalyptic number.

It is an amenable number.

8151774440 is an abundant number, since it is smaller than the sum of its proper divisors (11155061560).

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

8151774440 is a wasteful number, since it uses less digits than its factorization.

8151774440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10726049 (or 10726045 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 8151774440 is about 90287.1776056822. The cubic root of 8151774440 is about 2012.5687182019.

The spelling of 8151774440 in words is "eight billion, one hundred fifty-one million, seven hundred seventy-four thousand, four hundred forty".