7772280564 has 12 divisors (see below), whose sum is σ = 18135321344. Its totient is φ = 2590760184.

The previous prime is 7772280557. The next prime is 7772280613. The reversal of 7772280564 is 4650822777.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323845012 + ... + 323845035.

Almost surely, 2^7772280564 is an apocalyptic number.

It is an amenable number.

7772280564 is an abundant number, since it is smaller than the sum of its proper divisors (10363040780).

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

7772280564 is a wasteful number, since it uses less digits than its factorization.

7772280564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647690054 (or 647690052 counting only the distinct ones).

The product of its (nonzero) digits is 1317120, while the sum is 48.

The square root of 7772280564 is about 88160.5385872841. The cubic root of 7772280564 is about 1980.8404217200.

The spelling of 7772280564 in words is "seven billion, seven hundred seventy-two million, two hundred eighty thousand, five hundred sixty-four".