727772420251 has 2 divisors, whose sum is σ = 727772420252. Its totient is φ = 727772420250.

The previous prime is 727772420233. The next prime is 727772420261. The reversal of 727772420251 is 152024277727.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 727772420251 - 2¹⁵ = 727772387483 is a prime.

It is not a weakly prime, because it can be changed into another prime (727772420261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363886210125 + 363886210126.

It is an arithmetic number, because the mean of its divisors is an integer number (363886210126).

Almost surely, 2^727772420251 is an apocalyptic number.

727772420251 is a deficient number, since it is larger than the sum of its proper divisors (1).

727772420251 is an equidigital number, since it uses as much as digits as its factorization.

727772420251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768320, while the sum is 46.

Adding to 727772420251 its reverse (152024277727), we get a palindrome (879796697978).

The spelling of 727772420251 in words is "seven hundred twenty-seven billion, seven hundred seventy-two million, four hundred twenty thousand, two hundred fifty-one".