8151072985 has 16 divisors (see below), whose sum is σ = 10724674752. Its totient is φ = 5897953600.

The previous prime is 8151072983. The next prime is 8151072989. The reversal of 8151072985 is 5892701518.

It is not a de Polignac number, because 8151072985 - 2¹ = 8151072983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8151072983) 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, 365311 + ... + 386980.

It is an arithmetic number, because the mean of its divisors is an integer number (670292172).

Almost surely, 2^8151072985 is an apocalyptic number.

It is an amenable number.

8151072985 is a deficient number, since it is larger than the sum of its proper divisors (2573601767).

8151072985 is a wasteful number, since it uses less digits than its factorization.

8151072985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752504.

The product of its (nonzero) digits is 201600, while the sum is 46.

The square root of 8151072985 is about 90283.2929450405. The cubic root of 8151072985 is about 2012.5109897938.

The spelling of 8151072985 in words is "eight billion, one hundred fifty-one million, seventy-two thousand, nine hundred eighty-five".