354097819791 has 12 divisors (see below), whose sum is σ = 511487828800. Its totient is φ = 236059120800.

The previous prime is 354097819729. The next prime is 354097819799. The reversal of 354097819791 is 197918790453.

354097819791 is a `hidden beast` number, since 3 + 540 + 9 + 7 + 8 + 19 + 79 + 1 = 666.

It is not a de Polignac number, because 354097819791 - 2¹¹ = 354097817743 is a prime.

It is a super-2 number, since 2×354097819791² (a number of 24 digits) contains 22 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 (354097819799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124366 + ... + 850683.

Almost surely, 2^354097819791 is an apocalyptic number.

354097819791 is a deficient number, since it is larger than the sum of its proper divisors (157390009009).

354097819791 is a wasteful number, since it uses less digits than its factorization.

354097819791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015406 (or 1015403 counting only the distinct ones).

The product of its (nonzero) digits is 17146080, while the sum is 63.

It can be divided in two parts, 3540978 and 19791, that added together give a square (3560769 = 1887²).

The spelling of 354097819791 in words is "three hundred fifty-four billion, ninety-seven million, eight hundred nineteen thousand, seven hundred ninety-one".