235783451428 has 72 divisors (see below), whose sum is σ = 495745281024. Its totient is φ = 97736284800.

The previous prime is 235783451401. The next prime is 235783451437. The reversal of 235783451428 is 824154387532.

Its product of digits (6451200) is a multiple of the sum of its prime divisors (21504).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12099733 + ... + 12119203.

Almost surely, 2^235783451428 is an apocalyptic number.

235783451428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 235783451428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247872640512).

235783451428 is an abundant number, since it is smaller than the sum of its proper divisors (259961829596).

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

235783451428 is a wasteful number, since it uses less digits than its factorization.

235783451428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21513 (or 21504 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 52.

The spelling of 235783451428 in words is "two hundred thirty-five billion, seven hundred eighty-three million, four hundred fifty-one thousand, four hundred twenty-eight".