7420657682 has 8 divisors (see below), whose sum is σ = 11136703500. Its totient is φ = 3708423184.

The previous prime is 7420657679. The next prime is 7420657697. The reversal of 7420657682 is 2867560247.

It can be written as a sum of positive squares in 2 ways, for example, as 6905776201 + 514881481 = 83101^2 + 22691^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×7420657682² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 947957 + ... + 955752.

Almost surely, 2^7420657682 is an apocalyptic number.

7420657682 is a deficient number, since it is larger than the sum of its proper divisors (3716045818).

7420657682 is a wasteful number, since it uses less digits than its factorization.

7420657682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905660.

The product of its (nonzero) digits is 1128960, while the sum is 47.

The square root of 7420657682 is about 86143.2393284580. The cubic root of 7420657682 is about 1950.5067875865.

The spelling of 7420657682 in words is "seven billion, four hundred twenty million, six hundred fifty-seven thousand, six hundred eighty-two".