7722226636 has 12 divisors (see below), whose sum is σ = 13879137328. Its totient is φ = 3756758832.

The previous prime is 7722226621. The next prime is 7722226643. The reversal of 7722226636 is 6366222277.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 7722226592 and 7722226601.

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, 26088456 + ... + 26088751.

Almost surely, 2^7722226636 is an apocalyptic number.

It is an amenable number.

7722226636 is a deficient number, since it is larger than the sum of its proper divisors (6156910692).

7722226636 is a wasteful number, since it uses less digits than its factorization.

7722226636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52177248 (or 52177246 counting only the distinct ones).

The product of its digits is 508032, while the sum is 43.

The square root of 7722226636 is about 87876.2006233770. The cubic root of 7722226636 is about 1976.5790191104.

The spelling of 7722226636 in words is "seven billion, seven hundred twenty-two million, two hundred twenty-six thousand, six hundred thirty-six".