354260445421 has 4 divisors (see below), whose sum is σ = 363835052092. Its totient is φ = 344685838752.

The previous prime is 354260445401. The next prime is 354260445437. The reversal of 354260445421 is 124544062453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124544062453 = 563 ⋅221215031.

It can be written as a sum of positive squares in 2 ways, for example, as 277649955625 + 76610489796 = 526925^2 + 276786^2 .

It is a cyclic number.

It is not a de Polignac number, because 354260445421 - 2²⁵ = 354226890989 is a prime.

It is a super-3 number, since 3×354260445421³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354260445401) 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, 4787303280 + ... + 4787303353.

It is an arithmetic number, because the mean of its divisors is an integer number (90958763023).

Almost surely, 2^354260445421 is an apocalyptic number.

It is an amenable number.

354260445421 is a deficient number, since it is larger than the sum of its proper divisors (9574606671).

354260445421 is an equidigital number, since it uses as much as digits as its factorization.

354260445421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9574606670.

The product of its (nonzero) digits is 460800, while the sum is 40.

The spelling of 354260445421 in words is "three hundred fifty-four billion, two hundred sixty million, four hundred forty-five thousand, four hundred twenty-one".