7531426668 has 12 divisors (see below), whose sum is σ = 17573328920. Its totient is φ = 2510475552.

The previous prime is 7531426667. The next prime is 7531426673. The reversal of 7531426668 is 8666241357.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (7531426667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313809433 + ... + 313809456.

Almost surely, 2^7531426668 is an apocalyptic number.

It is an amenable number.

7531426668 is an abundant number, since it is smaller than the sum of its proper divisors (10041902252).

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

7531426668 is a wasteful number, since it uses less digits than its factorization.

7531426668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627618896 (or 627618894 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The square root of 7531426668 is about 86783.7926573851. The cubic root of 7531426668 is about 1960.1640384018.

The spelling of 7531426668 in words is "seven billion, five hundred thirty-one million, four hundred twenty-six thousand, six hundred sixty-eight".