7799986772 has 6 divisors (see below), whose sum is σ = 13649976858. Its totient is φ = 3899993384.

The previous prime is 7799986741. The next prime is 7799986783. The reversal of 7799986772 is 2776899977.

It can be written as a sum of positive squares in only one way, i.e., 7623734596 + 176252176 = 87314^2 + 13276^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7799986696 and 7799986705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974998343 + ... + 974998350.

It is an arithmetic number, because the mean of its divisors is an integer number (2274996143).

Almost surely, 2^7799986772 is an apocalyptic number.

It is an amenable number.

7799986772 is a deficient number, since it is larger than the sum of its proper divisors (5849990086).

7799986772 is a wasteful number, since it uses less digits than its factorization.

7799986772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949996697 (or 1949996695 counting only the distinct ones).

The product of its digits is 168031584, while the sum is 71.

The square root of 7799986772 is about 88317.5337744437. The cubic root of 7799986772 is about 1983.1913615831.

The spelling of 7799986772 in words is "seven billion, seven hundred ninety-nine million, nine hundred eighty-six thousand, seven hundred seventy-two".