5905790637521 has 2 divisors, whose sum is σ = 5905790637522. Its totient is φ = 5905790637520.

The previous prime is 5905790637479. The next prime is 5905790637533. The reversal of 5905790637521 is 1257360975095.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5695191331600 + 210599305921 = 2386460^2 + 458911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5905790637521 is a prime.

It is a super-2 number, since 2×5905790637521² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5905790637221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2952895318760 + 2952895318761.

It is an arithmetic number, because the mean of its divisors is an integer number (2952895318761).

Almost surely, 2^{5905790637521} is an apocalyptic number.

It is an amenable number.

5905790637521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5905790637521 is an equidigital number, since it uses as much as digits as its factorization.

5905790637521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17860500, while the sum is 59.

The spelling of 5905790637521 in words is "five trillion, nine hundred five billion, seven hundred ninety million, six hundred thirty-seven thousand, five hundred twenty-one".