231698065950 has 480 divisors, whose sum is σ = 741947199840. Its totient is φ = 53131852800.

The previous prime is 231698065943. The next prime is 231698065987. The reversal of 231698065950 is 59560896132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 61019452 + ... + 61023248.

It is an arithmetic number, because the mean of its divisors is an integer number (1545723333).

Almost surely, 2^231698065950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231698065950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370973599920).

231698065950 is an abundant number, since it is smaller than the sum of its proper divisors (510249133890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231698065950 is a wasteful number, since it uses less digits than its factorization.

231698065950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3914 (or 3900 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 54.

The spelling of 231698065950 in words is "two hundred thirty-one billion, six hundred ninety-eight million, sixty-five thousand, nine hundred fifty".