8388491145 has 32 divisors (see below), whose sum is σ = 14041520640. Its totient is φ = 4271861760.

The previous prime is 8388491131. The next prime is 8388491171. The reversal of 8388491145 is 5411948838.

It is not a de Polignac number, because 8388491145 - 2⁴ = 8388491129 is a prime.

It is a super-2 number, since 2×8388491145² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116200 + ... + 174009.

It is an arithmetic number, because the mean of its divisors is an integer number (438797520).

Almost surely, 2^8388491145 is an apocalyptic number.

It is an amenable number.

8388491145 is a deficient number, since it is larger than the sum of its proper divisors (5653029495).

8388491145 is a wasteful number, since it uses less digits than its factorization.

8388491145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290305.

The product of its digits is 1105920, while the sum is 51.

The square root of 8388491145 is about 91588.7064271573. The cubic root of 8388491145 is about 2031.8639116738.

The spelling of 8388491145 in words is "eight billion, three hundred eighty-eight million, four hundred ninety-one thousand, one hundred forty-five".