7534640493 has 24 divisors (see below), whose sum is σ = 11362260000. Its totient is φ = 4989357648.

The previous prime is 7534640461. The next prime is 7534640497. The reversal of 7534640493 is 3940464357.

7534640493 is a `hidden beast` number, since 75 + 34 + 64 + 0 + 493 = 666.

It is not a de Polignac number, because 7534640493 - 2⁵ = 7534640461 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7534640497) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67843 + ... + 140256.

It is an arithmetic number, because the mean of its divisors is an integer number (473427500).

Almost surely, 2^7534640493 is an apocalyptic number.

It is an amenable number.

7534640493 is a deficient number, since it is larger than the sum of its proper divisors (3827619507).

7534640493 is a wasteful number, since it uses less digits than its factorization.

7534640493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208263 (or 208251 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The square root of 7534640493 is about 86802.3069566702. The cubic root of 7534640493 is about 1960.4428137529.

The spelling of 7534640493 in words is "seven billion, five hundred thirty-four million, six hundred forty thousand, four hundred ninety-three".