7746242740 has 24 divisors (see below), whose sum is σ = 16645416480. Its totient is φ = 3026438688.

The previous prime is 7746242689. The next prime is 7746242747. The reversal of 7746242740 is 472426477.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7746242747) by changing a digit.

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, 4502770 + ... + 4504489.

It is an arithmetic number, because the mean of its divisors is an integer number (693559020).

Almost surely, 2^7746242740 is an apocalyptic number.

It is an amenable number.

7746242740 is an abundant number, since it is smaller than the sum of its proper divisors (8899173740).

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

7746242740 is a wasteful number, since it uses less digits than its factorization.

7746242740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9007311 (or 9007309 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 43.

The square root of 7746242740 is about 88012.7419184291. The cubic root of 7746242740 is about 1978.6259503963.

The spelling of 7746242740 in words is "seven billion, seven hundred forty-six million, two hundred forty-two thousand, seven hundred forty".