3992406725357 has 2 divisors, whose sum is σ = 3992406725358. Its totient is φ = 3992406725356.

The previous prime is 3992406725261. The next prime is 3992406725371. The reversal of 3992406725357 is 7535276042993.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2601207706276 + 1391199019081 = 1612826^2 + 1179491^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3992406725357 is a prime.

It is a super-2 number, since 2×3992406725357² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3992406725357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3992406725257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1996203362678 + 1996203362679.

It is an arithmetic number, because the mean of its divisors is an integer number (1996203362679).

Almost surely, 2^{3992406725357} is an apocalyptic number.

It is an amenable number.

3992406725357 is a deficient number, since it is larger than the sum of its proper divisors (1).

3992406725357 is an equidigital number, since it uses as much as digits as its factorization.

3992406725357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 85730400, while the sum is 62.

The spelling of 3992406725357 in words is "three trillion, nine hundred ninety-two billion, four hundred six million, seven hundred twenty-five thousand, three hundred fifty-seven".