8540145464 has 8 divisors (see below), whose sum is σ = 16012772760. Its totient is φ = 4270072728.

The previous prime is 8540145463. The next prime is 8540145487. The reversal of 8540145464 is 4645410458.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8540145461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533759084 + ... + 533759099.

It is an arithmetic number, because the mean of its divisors is an integer number (2001596595).

Almost surely, 2^8540145464 is an apocalyptic number.

It is an amenable number.

8540145464 is a deficient number, since it is larger than the sum of its proper divisors (7472627296).

8540145464 is a wasteful number, since it uses less digits than its factorization.

8540145464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067518189 (or 1067518185 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 41.

The square root of 8540145464 is about 92412.9074534505. The cubic root of 8540145464 is about 2044.0354459152.

The spelling of 8540145464 in words is "eight billion, five hundred forty million, one hundred forty-five thousand, four hundred sixty-four".