662402052397 has 2 divisors, whose sum is σ = 662402052398. Its totient is φ = 662402052396.

The previous prime is 662402052391. The next prime is 662402052419. The reversal of 662402052397 is 793250204266.

662402052397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 470885536521 + 191516515876 = 686211^2 + 437626^2 .

It is a cyclic number.

It is not a de Polignac number, because 662402052397 - 2⁷ = 662402052269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662402052391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331201026198 + 331201026199.

It is an arithmetic number, because the mean of its divisors is an integer number (331201026199).

Almost surely, 2^662402052397 is an apocalyptic number.

It is an amenable number.

662402052397 is a deficient number, since it is larger than the sum of its proper divisors (1).

662402052397 is an equidigital number, since it uses as much as digits as its factorization.

662402052397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 662402052397 in words is "six hundred sixty-two billion, four hundred two million, fifty-two thousand, three hundred ninety-seven".