42771746277251 has 2 divisors, whose sum is σ = 42771746277252. Its totient is φ = 42771746277250.

The previous prime is 42771746277217. The next prime is 42771746277289. The reversal of 42771746277251 is 15277264717724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42771746277251 - 2¹⁸ = 42771746015107 is a prime.

It is not a weakly prime, because it can be changed into another prime (42771746270251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21385873138625 + 21385873138626.

It is an arithmetic number, because the mean of its divisors is an integer number (21385873138626).

Almost surely, 2^{42771746277251} is an apocalyptic number.

42771746277251 is a deficient number, since it is larger than the sum of its proper divisors (1).

42771746277251 is an equidigital number, since it uses as much as digits as its factorization.

42771746277251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64538880, while the sum is 62.

The spelling of 42771746277251 in words is "forty-two trillion, seven hundred seventy-one billion, seven hundred forty-six million, two hundred seventy-seven thousand, two hundred fifty-one".