354464898561 has 6 divisors (see below), whose sum is σ = 512004853490. Its totient is φ = 236309932368.

The previous prime is 354464898553. The next prime is 354464898563. The reversal of 354464898561 is 165898464453.

354464898561 is a `hidden beast` number, since 3 + 5 + 4 + 4 + 64 + 8 + 9 + 8 + 561 = 666.

It can be written as a sum of positive squares in only one way, i.e., 206916724161 + 147548174400 = 454881^2 + 384120^2 .

It is not a de Polignac number, because 354464898561 - 2³ = 354464898553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354464898563) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19692494356 + ... + 19692494373.

Almost surely, 2^354464898561 is an apocalyptic number.

It is an amenable number.

354464898561 is a deficient number, since it is larger than the sum of its proper divisors (157539954929).

354464898561 is a wasteful number, since it uses less digits than its factorization.

354464898561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39384988735 (or 39384988732 counting only the distinct ones).

The product of its digits is 99532800, while the sum is 63.

The spelling of 354464898561 in words is "three hundred fifty-four billion, four hundred sixty-four million, eight hundred ninety-eight thousand, five hundred sixty-one".