354054043603561 has 4 divisors (see below), whose sum is σ = 404633192689792. Its totient is φ = 303474894517332.

The previous prime is 354054043603523. The next prime is 354054043603613. The reversal of 354054043603561 is 165306340450453.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 354054043603561 - 2⁴¹ = 351855020348009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354054043600561) 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, 25289574543105 + ... + 25289574543118.

It is an arithmetic number, because the mean of its divisors is an integer number (101158298172448).

Almost surely, 2^{354054043603561} is an apocalyptic number.

It is an amenable number.

354054043603561 is a deficient number, since it is larger than the sum of its proper divisors (50579149086231).

354054043603561 is an equidigital number, since it uses as much as digits as its factorization.

354054043603561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50579149086230.

The product of its (nonzero) digits is 7776000, while the sum is 49.

The spelling of 354054043603561 in words is "three hundred fifty-four trillion, fifty-four billion, forty-three million, six hundred three thousand, five hundred sixty-one".