7442543668 has 24 divisors (see below), whose sum is σ = 14899752000. Its totient is φ = 3186519168.

The previous prime is 7442543657. The next prime is 7442543677. The reversal of 7442543668 is 8663452447.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101893 + ... + 158956.

It is an arithmetic number, because the mean of its divisors is an integer number (620823000).

Almost surely, 2^7442543668 is an apocalyptic number.

It is an amenable number.

7442543668 is an abundant number, since it is smaller than the sum of its proper divisors (7457208332).

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

7442543668 is a wasteful number, since it uses less digits than its factorization.

7442543668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261879 (or 261877 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 49.

The square root of 7442543668 is about 86270.1783236826. The cubic root of 7442543668 is about 1952.4224697681.

The spelling of 7442543668 in words is "seven billion, four hundred forty-two million, five hundred forty-three thousand, six hundred sixty-eight".