3925657419247 has 2 divisors, whose sum is σ = 3925657419248. Its totient is φ = 3925657419246.

The previous prime is 3925657419143. The next prime is 3925657419287. The reversal of 3925657419247 is 7429147565293.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3925657419247 - 2³¹ = 3923509935599 is a prime.

It is a super-3 number, since 3×3925657419247³ (a number of 39 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3925657419287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1962828709623 + 1962828709624.

It is an arithmetic number, because the mean of its divisors is an integer number (1962828709624).

Almost surely, 2^{3925657419247} is an apocalyptic number.

3925657419247 is a deficient number, since it is larger than the sum of its proper divisors (1).

3925657419247 is an equidigital number, since it uses as much as digits as its factorization.

3925657419247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 114307200, while the sum is 64.

The spelling of 3925657419247 in words is "three trillion, nine hundred twenty-five billion, six hundred fifty-seven million, four hundred nineteen thousand, two hundred forty-seven".