349993478855 has 8 divisors (see below), whose sum is σ = 421794717552. Its totient is φ = 278793087808.

The previous prime is 349993478831. The next prime is 349993478867. The reversal of 349993478855 is 558874399943.

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 349993478855 - 2⁸ = 349993478599 is a prime.

It is a super-2 number, since 2×349993478855² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150210629 + ... + 150212958.

It is an arithmetic number, because the mean of its divisors is an integer number (52724339694).

Almost surely, 2^349993478855 is an apocalyptic number.

349993478855 is a deficient number, since it is larger than the sum of its proper divisors (71801238697).

349993478855 is a wasteful number, since it uses less digits than its factorization.

349993478855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300423825.

The product of its digits is 1175731200, while the sum is 74.

The spelling of 349993478855 in words is "three hundred forty-nine billion, nine hundred ninety-three million, four hundred seventy-eight thousand, eight hundred fifty-five".