234198621047 has 4 divisors (see below), whose sum is σ = 246524864280. Its totient is φ = 221872377816.

The previous prime is 234198621031. The next prime is 234198621061. The reversal of 234198621047 is 740126891432.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 234198621047 - 2⁴ = 234198621031 is a prime.

It is a super-2 number, since 2×234198621047² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 234198620992 and 234198621010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234198611047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6163121588 + ... + 6163121625.

It is an arithmetic number, because the mean of its divisors is an integer number (61631216070).

Almost surely, 2^234198621047 is an apocalyptic number.

234198621047 is a deficient number, since it is larger than the sum of its proper divisors (12326243233).

234198621047 is a wasteful number, since it uses less digits than its factorization.

234198621047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12326243232.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 234198621047 in words is "two hundred thirty-four billion, one hundred ninety-eight million, six hundred twenty-one thousand, forty-seven".