425953487231977 has 2 divisors, whose sum is σ = 425953487231978. Its totient is φ = 425953487231976.

The previous prime is 425953487231971. The next prime is 425953487232037. The reversal of 425953487231977 is 779132784359524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 250537740051456 + 175415747180521 = 15828384^2 + 13244461^2 .

It is a cyclic number.

It is not a de Polignac number, because 425953487231977 - 2¹⁵ = 425953487199209 is a prime.

It is a super-2 number, since 2×425953487231977² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (425953487231971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212976743615988 + 212976743615989.

It is an arithmetic number, because the mean of its divisors is an integer number (212976743615989).

Almost surely, 2^{425953487231977} is an apocalyptic number.

It is an amenable number.

425953487231977 is a deficient number, since it is larger than the sum of its proper divisors (1).

425953487231977 is an equidigital number, since it uses as much as digits as its factorization.

425953487231977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3200601600, while the sum is 76.

The spelling of 425953487231977 in words is "four hundred twenty-five trillion, nine hundred fifty-three billion, four hundred eighty-seven million, two hundred thirty-one thousand, nine hundred seventy-seven".