7742786152 has 8 divisors (see below), whose sum is σ = 14517724050. Its totient is φ = 3871393072.

The previous prime is 7742786147. The next prime is 7742786173. The reversal of 7742786152 is 2516872477.

It can be written as a sum of positive squares in only one way, i.e., 7643305476 + 99480676 = 87426^2 + 9974^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 7742786096 and 7742786105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483924127 + ... + 483924142.

Almost surely, 2^7742786152 is an apocalyptic number.

It is an amenable number.

7742786152 is a deficient number, since it is larger than the sum of its proper divisors (6774937898).

7742786152 is a wasteful number, since it uses less digits than its factorization.

7742786152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967848275 (or 967848271 counting only the distinct ones).

The product of its digits is 1317120, while the sum is 49.

The square root of 7742786152 is about 87993.1028660770. The cubic root of 7742786152 is about 1978.3316007142.

The spelling of 7742786152 in words is "seven billion, seven hundred forty-two million, seven hundred eighty-six thousand, one hundred fifty-two".