7825738907 has 4 divisors (see below), whose sum is σ = 8943701616. Its totient is φ = 6707776200.

The previous prime is 7825738897. The next prime is 7825738927. The reversal of 7825738907 is 7098375287.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7825738907 - 2¹⁰ = 7825737883 is a prime.

It is a super-2 number, since 2×7825738907² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7825738927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558981344 + ... + 558981357.

It is an arithmetic number, because the mean of its divisors is an integer number (2235925404).

Almost surely, 2^7825738907 is an apocalyptic number.

7825738907 is a deficient number, since it is larger than the sum of its proper divisors (1117962709).

7825738907 is a wasteful number, since it uses less digits than its factorization.

7825738907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117962708.

The product of its (nonzero) digits is 5927040, while the sum is 56.

The square root of 7825738907 is about 88463.2065154774. The cubic root of 7825738907 is about 1985.3715067080.

The spelling of 7825738907 in words is "seven billion, eight hundred twenty-five million, seven hundred thirty-eight thousand, nine hundred seven".