4251252191471 has 2 divisors, whose sum is σ = 4251252191472. Its totient is φ = 4251252191470.

The previous prime is 4251252191429. The next prime is 4251252191509. The reversal of 4251252191471 is 1741912521524.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4251252191471 is a prime.

It is a super-3 number, since 3×4251252191471³ (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 (4251252199471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2125626095735 + 2125626095736.

It is an arithmetic number, because the mean of its divisors is an integer number (2125626095736).

Almost surely, 2^{4251252191471} is an apocalyptic number.

4251252191471 is a deficient number, since it is larger than the sum of its proper divisors (1).

4251252191471 is an equidigital number, since it uses as much as digits as its factorization.

4251252191471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 44.

The spelling of 4251252191471 in words is "four trillion, two hundred fifty-one billion, two hundred fifty-two million, one hundred ninety-one thousand, four hundred seventy-one".