7534874681 has 8 divisors (see below), whose sum is σ = 7866291840. Its totient is φ = 7203775392.

The previous prime is 7534874651. The next prime is 7534874687. The reversal of 7534874681 is 1864784357.

It is a happy number.

7534874681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7534874681 - 2⁶ = 7534874617 is a prime.

It is a super-2 number, since 2×7534874681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7534874687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30365 + ... + 126458.

It is an arithmetic number, because the mean of its divisors is an integer number (983286480).

Almost surely, 2^7534874681 is an apocalyptic number.

It is an amenable number.

7534874681 is a deficient number, since it is larger than the sum of its proper divisors (331417159).

7534874681 is a wasteful number, since it uses less digits than its factorization.

7534874681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158935.

The product of its digits is 4515840, while the sum is 53.

The square root of 7534874681 is about 86803.6559195521. The cubic root of 7534874681 is about 1960.4631247164.

The spelling of 7534874681 in words is "seven billion, five hundred thirty-four million, eight hundred seventy-four thousand, six hundred eighty-one".