6426725867531 has 2 divisors, whose sum is σ = 6426725867532. Its totient is φ = 6426725867530.

The previous prime is 6426725867431. The next prime is 6426725867533. The reversal of 6426725867531 is 1357685276246.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6426725867531 - 2³⁴ = 6409545998347 is a prime.

It is a super-2 number, since 2×6426725867531² (a number of 26 digits) contains 22 as substring.

Together with 6426725867533, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6426725867533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3213362933765 + 3213362933766.

It is an arithmetic number, because the mean of its divisors is an integer number (3213362933766).

Almost surely, 2^{6426725867531} is an apocalyptic number.

6426725867531 is a deficient number, since it is larger than the sum of its proper divisors (1).

6426725867531 is an equidigital number, since it uses as much as digits as its factorization.

6426725867531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 101606400, while the sum is 62.

The spelling of 6426725867531 in words is "six trillion, four hundred twenty-six billion, seven hundred twenty-five million, eight hundred sixty-seven thousand, five hundred thirty-one".