355787820871 has 8 divisors (see below), whose sum is σ = 406744296480. Its totient is φ = 304863756288.

The previous prime is 355787820853. The next prime is 355787820901. The reversal of 355787820871 is 178028787553.

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

It is not a de Polignac number, because 355787820871 - 2¹⁹ = 355787296583 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 (355787820671) 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, 8079226 + ... + 8123143.

It is an arithmetic number, because the mean of its divisors is an integer number (50843037060).

Almost surely, 2^355787820871 is an apocalyptic number.

355787820871 is a deficient number, since it is larger than the sum of its proper divisors (50956475609).

355787820871 is a wasteful number, since it uses less digits than its factorization.

355787820871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16205513.

The product of its (nonzero) digits is 26342400, while the sum is 61.

The spelling of 355787820871 in words is "three hundred fifty-five billion, seven hundred eighty-seven million, eight hundred twenty thousand, eight hundred seventy-one".