6425134637 has 2 divisors, whose sum is σ = 6425134638. Its totient is φ = 6425134636.

The previous prime is 6425134627. The next prime is 6425134657. The reversal of 6425134637 is 7364315246.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6408642916 + 16491721 = 80054^2 + 4061^2 .

It is a cyclic number.

It is not a de Polignac number, because 6425134637 - 2¹⁴ = 6425118253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6425134594 and 6425134603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6425134627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3212567318 + 3212567319.

It is an arithmetic number, because the mean of its divisors is an integer number (3212567319).

Almost surely, 2^6425134637 is an apocalyptic number.

It is an amenable number.

6425134637 is a deficient number, since it is larger than the sum of its proper divisors (1).

6425134637 is an equidigital number, since it uses as much as digits as its factorization.

6425134637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 41.

The square root of 6425134637 is about 80156.9375475386. The cubic root of 6425134637 is about 1859.0628721450.

The spelling of 6425134637 in words is "six billion, four hundred twenty-five million, one hundred thirty-four thousand, six hundred thirty-seven".