7462840666 has 4 divisors (see below), whose sum is σ = 11194261002. Its totient is φ = 3731420332.

The previous prime is 7462840661. The next prime is 7462840667. The reversal of 7462840666 is 6660482647.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4606472641 + 2856368025 = 67871^2 + 53445^2 .

It is a super-2 number, since 2×7462840666² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7462840661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1865710165 + ... + 1865710168.

Almost surely, 2^7462840666 is an apocalyptic number.

7462840666 is a deficient number, since it is larger than the sum of its proper divisors (3731420336).

7462840666 is a wasteful number, since it uses less digits than its factorization.

7462840666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3731420335.

The product of its (nonzero) digits is 2322432, while the sum is 49.

The square root of 7462840666 is about 86387.7344650269. The cubic root of 7462840666 is about 1954.1957141039.

The spelling of 7462840666 in words is "seven billion, four hundred sixty-two million, eight hundred forty thousand, six hundred sixty-six".