418180437397 has 2 divisors, whose sum is σ = 418180437398. Its totient is φ = 418180437396.

The previous prime is 418180437341. The next prime is 418180437431. The reversal of 418180437397 is 793734081814.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 397386508996 + 20793928401 = 630386^2 + 144201^2 .

It is a cyclic number.

It is not a de Polignac number, because 418180437397 - 2¹¹ = 418180435349 is a prime.

It is a super-2 number, since 2×418180437397² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (418180437797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209090218698 + 209090218699.

It is an arithmetic number, because the mean of its divisors is an integer number (209090218699).

Almost surely, 2^418180437397 is an apocalyptic number.

It is an amenable number.

418180437397 is a deficient number, since it is larger than the sum of its proper divisors (1).

418180437397 is an equidigital number, since it uses as much as digits as its factorization.

418180437397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 418180437397 in words is "four hundred eighteen billion, one hundred eighty million, four hundred thirty-seven thousand, three hundred ninety-seven".