351542422781 has 8 divisors (see below), whose sum is σ = 383556721728. Its totient is φ = 319537440000.

The previous prime is 351542422769. The next prime is 351542422789. The reversal of 351542422781 is 187224245153.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 351542422781 - 2⁶ = 351542422717 is a prime.

It is a super-3 number, since 3×351542422781³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351542422789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2250020 + ... + 2401181.

It is an arithmetic number, because the mean of its divisors is an integer number (47944590216).

Almost surely, 2^351542422781 is an apocalyptic number.

It is an amenable number.

351542422781 is a deficient number, since it is larger than the sum of its proper divisors (32014298947).

351542422781 is a wasteful number, since it uses less digits than its factorization.

351542422781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4658083.

The product of its digits is 537600, while the sum is 44.

The spelling of 351542422781 in words is "three hundred fifty-one billion, five hundred forty-two million, four hundred twenty-two thousand, seven hundred eighty-one".