5311426621 has 2 divisors, whose sum is σ = 5311426622. Its totient is φ = 5311426620.

The previous prime is 5311426597. The next prime is 5311426643. The reversal of 5311426621 is 1266241135.

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., 4171351396 + 1140075225 = 64586^2 + 33765^2 .

It is a cyclic number.

It is not a de Polignac number, because 5311426621 - 2⁷ = 5311426493 is a prime.

It is a super-2 number, since 2×5311426621² = 56422505500534955282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5311426921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2655713310 + 2655713311.

It is an arithmetic number, because the mean of its divisors is an integer number (2655713311).

Almost surely, 2^5311426621 is an apocalyptic number.

It is an amenable number.

5311426621 is a deficient number, since it is larger than the sum of its proper divisors (1).

5311426621 is an equidigital number, since it uses as much as digits as its factorization.

5311426621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 31.

The square root of 5311426621 is about 72879.5349944002. The cubic root of 5311426621 is about 1744.7654872136.

Adding to 5311426621 its reverse (1266241135), we get a palindrome (6577667756).

The spelling of 5311426621 in words is "five billion, three hundred eleven million, four hundred twenty-six thousand, six hundred twenty-one".