7668158541 has 4 divisors (see below), whose sum is σ = 10224211392. Its totient is φ = 5112105692.

The previous prime is 7668158513. The next prime is 7668158581. The reversal of 7668158541 is 1458518667.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7668158541 - 2¹⁷ = 7668027469 is a prime.

It is a super-2 number, since 2×7668158541² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7668158581) 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, 1278026421 + ... + 1278026426.

It is an arithmetic number, because the mean of its divisors is an integer number (2556052848).

Almost surely, 2^7668158541 is an apocalyptic number.

It is an amenable number.

7668158541 is a deficient number, since it is larger than the sum of its proper divisors (2556052851).

7668158541 is a wasteful number, since it uses less digits than its factorization.

7668158541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556052850.

The product of its digits is 1612800, while the sum is 51.

The square root of 7668158541 is about 87568.0223654731. The cubic root of 7668158541 is about 1971.9551257400.

The spelling of 7668158541 in words is "seven billion, six hundred sixty-eight million, one hundred fifty-eight thousand, five hundred forty-one".