8365781151 has 48 divisors (see below), whose sum is σ = 14886982656. Its totient is φ = 4408423488.

The previous prime is 8365781147. The next prime is 8365781153. The reversal of 8365781151 is 1511875638.

It is not a de Polignac number, because 8365781151 - 2² = 8365781147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8365781097 and 8365781106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8365781153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 948106 + ... + 956888.

It is an arithmetic number, because the mean of its divisors is an integer number (310145472).

Almost surely, 2^8365781151 is an apocalyptic number.

8365781151 is a deficient number, since it is larger than the sum of its proper divisors (6521201505).

8365781151 is a wasteful number, since it uses less digits than its factorization.

8365781151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9972 (or 9969 counting only the distinct ones).

The product of its digits is 201600, while the sum is 45.

The square root of 8365781151 is about 91464.6442676076. The cubic root of 8365781151 is about 2030.0286463315.

The spelling of 8365781151 in words is "eight billion, three hundred sixty-five million, seven hundred eighty-one thousand, one hundred fifty-one".