354486456557 has 2 divisors, whose sum is σ = 354486456558. Its totient is φ = 354486456556.

The previous prime is 354486456547. The next prime is 354486456563. The reversal of 354486456557 is 755654684453.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312666615556 + 41819841001 = 559166^2 + 204499^2 .

It is a cyclic number.

It is not a de Polignac number, because 354486456557 - 2³⁸ = 79608549613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 354486456557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354486456547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177243228278 + 177243228279.

It is an arithmetic number, because the mean of its divisors is an integer number (177243228279).

Almost surely, 2^354486456557 is an apocalyptic number.

It is an amenable number.

354486456557 is a deficient number, since it is larger than the sum of its proper divisors (1).

354486456557 is an equidigital number, since it uses as much as digits as its factorization.

354486456557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920000, while the sum is 62.

The spelling of 354486456557 in words is "three hundred fifty-four billion, four hundred eighty-six million, four hundred fifty-six thousand, five hundred fifty-seven".