234504908891 has 6 divisors (see below), whose sum is σ = 255825289092. Its totient is φ = 213184820720.

The previous prime is 234504908887. The next prime is 234504908893. The reversal of 234504908891 is 198809405432.

It is not a de Polignac number, because 234504908891 - 2² = 234504908887 is a prime.

It is a super-3 number, since 3×234504908891³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234504908893) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1533095 + ... + 1679103.

It is an arithmetic number, because the mean of its divisors is an integer number (42637548182).

Almost surely, 2^234504908891 is an apocalyptic number.

234504908891 is a deficient number, since it is larger than the sum of its proper divisors (21320380201).

234504908891 is an frugal number, since it uses more digits than its factorization.

234504908891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292029 (or 146020 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 53.

The spelling of 234504908891 in words is "two hundred thirty-four billion, five hundred four million, nine hundred eight thousand, eight hundred ninety-one".