3551426204657 has 2 divisors, whose sum is σ = 3551426204658. Its totient is φ = 3551426204656.

The previous prime is 3551426204639. The next prime is 3551426204687. The reversal of 3551426204657 is 7564026241553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3344688664801 + 206737539856 = 1828849^2 + 454684^2 .

It is a cyclic number.

It is not a de Polignac number, because 3551426204657 - 2⁶ = 3551426204593 is a prime.

It is a super-2 number, since 2×3551426204657² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3551426204687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1775713102328 + 1775713102329.

It is an arithmetic number, because the mean of its divisors is an integer number (1775713102329).

Almost surely, 2^{3551426204657} is an apocalyptic number.

It is an amenable number.

3551426204657 is a deficient number, since it is larger than the sum of its proper divisors (1).

3551426204657 is an equidigital number, since it uses as much as digits as its factorization.

3551426204657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048000, while the sum is 50.

The spelling of 3551426204657 in words is "three trillion, five hundred fifty-one billion, four hundred twenty-six million, two hundred four thousand, six hundred fifty-seven".