42826386239551 has 2 divisors, whose sum is σ = 42826386239552. Its totient is φ = 42826386239550.

The previous prime is 42826386239521. The next prime is 42826386239597. The reversal of 42826386239551 is 15593268362824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42826386239551 - 2⁵ = 42826386239519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42826386239521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21413193119775 + 21413193119776.

It is an arithmetic number, because the mean of its divisors is an integer number (21413193119776).

Almost surely, 2^{42826386239551} is an apocalyptic number.

42826386239551 is a deficient number, since it is larger than the sum of its proper divisors (1).

42826386239551 is an equidigital number, since it uses as much as digits as its factorization.

42826386239551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 149299200, while the sum is 64.

The spelling of 42826386239551 in words is "forty-two trillion, eight hundred twenty-six billion, three hundred eighty-six million, two hundred thirty-nine thousand, five hundred fifty-one".