7783949952 has 48 divisors (see below), whose sum is σ = 22399130130. Its totient is φ = 2594649600.

The previous prime is 7783949947. The next prime is 7783949977. The reversal of 7783949952 is 2599493877.

It can be written as a sum of positive squares in only one way, i.e., 7460813376 + 323136576 = 86376^2 + 17976^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 7783949952.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3377299 + ... + 3379602.

Almost surely, 2^7783949952 is an apocalyptic number.

7783949952 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

7783949952 is an abundant number, since it is smaller than the sum of its proper divisors (14615180178).

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

7783949952 is a wasteful number, since it uses less digits than its factorization.

7783949952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6756921 (or 6756906 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 63.

The square root of 7783949952 is about 88226.6963679362. The cubic root of 7783949952 is about 1981.8312778969.

The spelling of 7783949952 in words is "seven billion, seven hundred eighty-three million, nine hundred forty-nine thousand, nine hundred fifty-two".