7648361253 has 20 divisors (see below), whose sum is σ = 12304202988. Its totient is φ = 4706683200.

The previous prime is 7648361239. The next prime is 7648361257. The reversal of 7648361253 is 3521638467.

It can be written as a sum of positive squares in 2 ways, for example, as 2741779044 + 4906582209 = 52362^2 + 70047^2 .

It is not a de Polignac number, because 7648361253 - 2⁸ = 7648360997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7648361199 and 7648361208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7648361257) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3630648 + ... + 3632753.

Almost surely, 2^7648361253 is an apocalyptic number.

It is an amenable number.

7648361253 is a deficient number, since it is larger than the sum of its proper divisors (4655841735).

7648361253 is a wasteful number, since it uses less digits than its factorization.

7648361253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7263426 (or 7263417 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 7648361253 is about 87454.9098278650. The cubic root of 7648361253 is about 1970.2566297987.

The spelling of 7648361253 in words is "seven billion, six hundred forty-eight million, three hundred sixty-one thousand, two hundred fifty-three".