7534775640 has 64 divisors (see below), whose sum is σ = 25833519360. Its totient is φ = 1722234240.

The previous prime is 7534775627. The next prime is 7534775681. The reversal of 7534775640 is 465774357.

It is a self number, because there is not a number n which added to its sum of digits gives 7534775640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4484146 + ... + 4485825.

It is an arithmetic number, because the mean of its divisors is an integer number (403648740).

Almost surely, 2^7534775640 is an apocalyptic number.

7534775640 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7534775640 is an abundant number, since it is smaller than the sum of its proper divisors (18298743720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7534775640 is a wasteful number, since it uses less digits than its factorization.

7534775640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8969992 (or 8969988 counting only the distinct ones).

The product of its (nonzero) digits is 2469600, while the sum is 48.

The square root of 7534775640 is about 86803.0854290330. The cubic root of 7534775640 is about 1960.4545350102.

The spelling of 7534775640 in words is "seven billion, five hundred thirty-four million, seven hundred seventy-five thousand, six hundred forty".