7930742690 has 32 divisors (see below), whose sum is σ = 16182573120. Its totient is φ = 2774153664.

The previous prime is 7930742593. The next prime is 7930742693. The reversal of 7930742690 is 962470397.

It is a super-2 number, since 2×7930742690² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7930742693) 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 15 ways as a sum of consecutive naturals, for example, 1602944 + ... + 1607883.

It is an arithmetic number, because the mean of its divisors is an integer number (505705410).

Almost surely, 2^7930742690 is an apocalyptic number.

7930742690 is an abundant number, since it is smaller than the sum of its proper divisors (8251830430).

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

7930742690 is a wasteful number, since it uses less digits than its factorization.

7930742690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3210866.

The product of its (nonzero) digits is 571536, while the sum is 47.

The square root of 7930742690 is about 89054.7173932970. The cubic root of 7930742690 is about 1994.2118221588.

The spelling of 7930742690 in words is "seven billion, nine hundred thirty million, seven hundred forty-two thousand, six hundred ninety".