7825371349 has 2 divisors, whose sum is σ = 7825371350. Its totient is φ = 7825371348.

The previous prime is 7825371347. The next prime is 7825371391. The reversal of 7825371349 is 9431735287.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7544138449 + 281232900 = 86857^2 + 16770^2 .

It is a cyclic number.

It is not a de Polignac number, because 7825371349 - 2¹ = 7825371347 is a prime.

It is a super-2 number, since 2×7825371349² (a number of 21 digits) contains 22 as substring.

Together with 7825371347, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7825371347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3912685674 + 3912685675.

It is an arithmetic number, because the mean of its divisors is an integer number (3912685675).

Almost surely, 2^7825371349 is an apocalyptic number.

It is an amenable number.

7825371349 is a deficient number, since it is larger than the sum of its proper divisors (1).

7825371349 is an equidigital number, since it uses as much as digits as its factorization.

7825371349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 49.

The square root of 7825371349 is about 88461.1290285174. The cubic root of 7825371349 is about 1985.3404233554.

The spelling of 7825371349 in words is "seven billion, eight hundred twenty-five million, three hundred seventy-one thousand, three hundred forty-nine".