837468407681 has 2 divisors, whose sum is σ = 837468407682. Its totient is φ = 837468407680.

The previous prime is 837468407627. The next prime is 837468407701. The reversal of 837468407681 is 186704864738.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 770955997681 + 66512410000 = 878041^2 + 257900^2 .

It is a cyclic number.

It is not a de Polignac number, because 837468407681 - 2¹⁴ = 837468391297 is a prime.

It is a super-2 number, since 2×837468407681² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (837468407981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 418734203840 + 418734203841.

It is an arithmetic number, because the mean of its divisors is an integer number (418734203841).

Almost surely, 2^837468407681 is an apocalyptic number.

It is an amenable number.

837468407681 is a deficient number, since it is larger than the sum of its proper divisors (1).

837468407681 is an equidigital number, since it uses as much as digits as its factorization.

837468407681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43352064, while the sum is 62.

The spelling of 837468407681 in words is "eight hundred thirty-seven billion, four hundred sixty-eight million, four hundred seven thousand, six hundred eighty-one".