5431713452621 has 4 divisors (see below), whose sum is σ = 5431719479292. Its totient is φ = 5431707425952.

The previous prime is 5431713452617. The next prime is 5431713452639. The reversal of 5431713452621 is 1262543171345.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2574295100521 + 2857418352100 = 1604461^2 + 1690390^2 .

It is a cyclic number.

It is not a de Polignac number, because 5431713452621 - 2² = 5431713452617 is a prime.

It is a super-2 number, since 2×5431713452621² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5431713452681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1358480 + ... + 3564953.

It is an arithmetic number, because the mean of its divisors is an integer number (1357929869823).

Almost surely, 2^{5431713452621} is an apocalyptic number.

It is an amenable number.

5431713452621 is a deficient number, since it is larger than the sum of its proper divisors (6026671).

5431713452621 is a wasteful number, since it uses less digits than its factorization.

5431713452621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6026670.

The product of its digits is 604800, while the sum is 44.

The spelling of 5431713452621 in words is "five trillion, four hundred thirty-one billion, seven hundred thirteen million, four hundred fifty-two thousand, six hundred twenty-one".