7238158668 has 36 divisors (see below), whose sum is σ = 19703877648. Its totient is φ = 2227125600.

The previous prime is 7238158667. The next prime is 7238158717. The reversal of 7238158668 is 8668518327.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (7238158667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7732608 + ... + 7733543.

Almost surely, 2^7238158668 is an apocalyptic number.

7238158668 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

7238158668 is an abundant number, since it is smaller than the sum of its proper divisors (12465718980).

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

7238158668 is a wasteful number, since it uses less digits than its factorization.

7238158668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15466174 (or 15466169 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 7238158668 is about 85077.3687181262. The cubic root of 7238158668 is about 1934.3840372625.

The spelling of 7238158668 in words is "seven billion, two hundred thirty-eight million, one hundred fifty-eight thousand, six hundred sixty-eight".