7738247825 has 72 divisors (see below), whose sum is σ = 12210450624. Its totient is φ = 4810512000.

The previous prime is 7738247813. The next prime is 7738247831. The reversal of 7738247825 is 5287428377.

It is not a de Polignac number, because 7738247825 - 2⁴ = 7738247809 is a prime.

It is a super-2 number, since 2×7738247825² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7505060 + ... + 7506090.

It is an arithmetic number, because the mean of its divisors is an integer number (169589592).

Almost surely, 2^7738247825 is an apocalyptic number.

It is an amenable number.

7738247825 is a deficient number, since it is larger than the sum of its proper divisors (4472202799).

7738247825 is a wasteful number, since it uses less digits than its factorization.

7738247825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623 (or 1611 counting only the distinct ones).

The product of its digits is 5268480, while the sum is 53.

The square root of 7738247825 is about 87967.3111161186. The cubic root of 7738247825 is about 1977.9450012703.

The spelling of 7738247825 in words is "seven billion, seven hundred thirty-eight million, two hundred forty-seven thousand, eight hundred twenty-five".