7784079012 has 36 divisors (see below), whose sum is σ = 19686360876. Its totient is φ = 2593382400.

The previous prime is 7784079007. The next prime is 7784079029. The reversal of 7784079012 is 2109704877.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3351715236 + 4432363776 = 57894^2 + 66576^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×7784079012² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19012 + ... + 126212.

Almost surely, 2^7784079012 is an apocalyptic number.

It is an amenable number.

7784079012 is an abundant number, since it is smaller than the sum of its proper divisors (11902281864).

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

7784079012 is a wasteful number, since it uses less digits than its factorization.

7784079012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109228 (or 109223 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The square root of 7784079012 is about 88227.4277761740. The cubic root of 7784079012 is about 1981.8422309363.

The spelling of 7784079012 in words is "seven billion, seven hundred eighty-four million, seventy-nine thousand, twelve".