7668620541 has 16 divisors (see below), whose sum is σ = 11530488000. Its totient is φ = 5036107824.

The previous prime is 7668620507. The next prime is 7668620657. The reversal of 7668620541 is 1450268667.

7668620541 is a `hidden beast` number, since 7 + 6 + 6 + 86 + 20 + 541 = 666.

It is not a de Polignac number, because 7668620541 - 2¹³ = 7668612349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7668620341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2117766 + ... + 2121383.

It is an arithmetic number, because the mean of its divisors is an integer number (720655500).

Almost surely, 2^7668620541 is an apocalyptic number.

It is an amenable number.

7668620541 is a deficient number, since it is larger than the sum of its proper divisors (3861867459).

7668620541 is a wasteful number, since it uses less digits than its factorization.

7668620541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4239225 (or 4239219 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 7668620541 is about 87570.6602750031. The cubic root of 7668620541 is about 1971.9947278151.

The spelling of 7668620541 in words is "seven billion, six hundred sixty-eight million, six hundred twenty thousand, five hundred forty-one".