355997347871 has 8 divisors (see below), whose sum is σ = 411205492944. Its totient is φ = 304596661120.

The previous prime is 355997347801. The next prime is 355997347873. The reversal of 355997347871 is 178743799553.

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 355997347871 - 2¹⁰ = 355997346847 is a prime.

It is a super-2 number, since 2×355997347871² (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 (355997347873) 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, 951864380 + ... + 951864753.

It is an arithmetic number, because the mean of its divisors is an integer number (51400686618).

Almost surely, 2^355997347871 is an apocalyptic number.

355997347871 is a deficient number, since it is larger than the sum of its proper divisors (55208145073).

355997347871 is a wasteful number, since it uses less digits than its factorization.

355997347871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903729161.

The product of its digits is 200037600, while the sum is 68.

The spelling of 355997347871 in words is "three hundred fifty-five billion, nine hundred ninety-seven million, three hundred forty-seven thousand, eight hundred seventy-one".