233142891538 has 16 divisors (see below), whose sum is σ = 375952705920. Its totient is φ = 108086401296.

The previous prime is 233142891533. The next prime is 233142891551. The reversal of 233142891538 is 835198241332.

It is a junction number, because it is equal to n+sod(n) for n = 233142891491 and 233142891500.

It is not an unprimeable number, because it can be changed into a prime (233142891533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65267781 + ... + 65271352.

It is an arithmetic number, because the mean of its divisors is an integer number (23497044120).

Almost surely, 2^233142891538 is an apocalyptic number.

233142891538 is a deficient number, since it is larger than the sum of its proper divisors (142809814382).

233142891538 is a wasteful number, since it uses less digits than its factorization.

233142891538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130539201.

The product of its digits is 1244160, while the sum is 49.

The spelling of 233142891538 in words is "two hundred thirty-three billion, one hundred forty-two million, eight hundred ninety-one thousand, five hundred thirty-eight".