7642297556 has 12 divisors (see below), whose sum is σ = 13392123360. Its totient is φ = 3815976600.

The previous prime is 7642297499. The next prime is 7642297573. The reversal of 7642297556 is 6557922467.

It is a super-4 number, since 4×7642297556⁴ (a number of 41 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7642297498 and 7642297507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1289720 + ... + 1295631.

It is an arithmetic number, because the mean of its divisors is an integer number (1116010280).

Almost surely, 2^7642297556 is an apocalyptic number.

It is an amenable number.

7642297556 is a deficient number, since it is larger than the sum of its proper divisors (5749825804).

7642297556 is a wasteful number, since it uses less digits than its factorization.

7642297556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586094 (or 2586092 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 53.

The square root of 7642297556 is about 87420.2353920418. The cubic root of 7642297556 is about 1969.7358124430.

The spelling of 7642297556 in words is "seven billion, six hundred forty-two million, two hundred ninety-seven thousand, five hundred fifty-six".