354544135205523 has 16 divisors (see below), whose sum is σ = 475583746291200. Its totient is φ = 234937717828640.

The previous prime is 354544135205437. The next prime is 354544135205539. The reversal of 354544135205523 is 325502531445453.

It is a cyclic number.

It is not a de Polignac number, because 354544135205523 - 2³³ = 354535545270931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (354544135205573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 509322693 + ... + 510018326.

It is an arithmetic number, because the mean of its divisors is an integer number (29723984143200).

Almost surely, 2^{354544135205523} is an apocalyptic number.

354544135205523 is a deficient number, since it is larger than the sum of its proper divisors (121039611085677).

354544135205523 is a wasteful number, since it uses less digits than its factorization.

354544135205523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019341722.

The product of its (nonzero) digits is 21600000, while the sum is 51.

The spelling of 354544135205523 in words is "three hundred fifty-four trillion, five hundred forty-four billion, one hundred thirty-five million, two hundred five thousand, five hundred twenty-three".