231946846738 has 4 divisors (see below), whose sum is σ = 347920270110. Its totient is φ = 115973423368.

The previous prime is 231946846721. The next prime is 231946846739. The reversal of 231946846738 is 837648649132.

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

It can be written as a sum of positive squares in only one way, i.e., 191496385609 + 40450461129 = 437603^2 + 201123^2 .

It is a super-2 number, since 2×231946846738² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231946846739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57986711683 + ... + 57986711686.

Almost surely, 2^231946846738 is an apocalyptic number.

231946846738 is a deficient number, since it is larger than the sum of its proper divisors (115973423372).

231946846738 is a wasteful number, since it uses less digits than its factorization.

231946846738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115973423371.

The product of its digits is 41803776, while the sum is 61.

The spelling of 231946846738 in words is "two hundred thirty-one billion, nine hundred forty-six million, eight hundred forty-six thousand, seven hundred thirty-eight".