4126401650381 has 2 divisors, whose sum is σ = 4126401650382. Its totient is φ = 4126401650380.

The previous prime is 4126401650363. The next prime is 4126401650443. The reversal of 4126401650381 is 1830561046214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4102917620356 + 23484030025 = 2025566^2 + 153245^2 .

It is a cyclic number.

It is not a de Polignac number, because 4126401650381 - 2¹⁸ = 4126401388237 is a prime.

It is a super-2 number, since 2×4126401650381² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4126401680381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2063200825190 + 2063200825191.

It is an arithmetic number, because the mean of its divisors is an integer number (2063200825191).

Almost surely, 2^{4126401650381} is an apocalyptic number.

It is an amenable number.

4126401650381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4126401650381 is an equidigital number, since it uses as much as digits as its factorization.

4126401650381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 41.

Adding to 4126401650381 its reverse (1830561046214), we get a palindrome (5956962696595).

The spelling of 4126401650381 in words is "four trillion, one hundred twenty-six billion, four hundred one million, six hundred fifty thousand, three hundred eighty-one".