353899780685 has 8 divisors (see below), whose sum is σ = 463286985696. Its totient is φ = 257381658640.

The previous prime is 353899780681. The next prime is 353899780697. The reversal of 353899780685 is 586087998353.

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

It is not a de Polignac number, because 353899780685 - 2² = 353899780681 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (353899780681) 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, 3217270679 + ... + 3217270788.

It is an arithmetic number, because the mean of its divisors is an integer number (57910873212).

Almost surely, 2^353899780685 is an apocalyptic number.

It is an amenable number.

353899780685 is a deficient number, since it is larger than the sum of its proper divisors (109387205011).

353899780685 is a wasteful number, since it uses less digits than its factorization.

353899780685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6434541483.

The product of its (nonzero) digits is 391910400, while the sum is 71.

The spelling of 353899780685 in words is "three hundred fifty-three billion, eight hundred ninety-nine million, seven hundred eighty thousand, six hundred eighty-five".