128633425450042 has 8 divisors (see below), whose sum is σ = 193133725369632. Its totient is φ = 64255516993500.

The previous prime is 128633425450021. The next prime is 128633425450067. The reversal of 128633425450042 is 240054524336821.

128633425450042 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30597863134 + ... + 30597867337.

It is an arithmetic number, because the mean of its divisors is an integer number (24141715671204).

Almost surely, 2^{128633425450042} is an apocalyptic number.

128633425450042 is a deficient number, since it is larger than the sum of its proper divisors (64500299919590).

128633425450042 is a wasteful number, since it uses less digits than its factorization.

128633425450042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61195731524.

The product of its (nonzero) digits is 5529600, while the sum is 49.

Adding to 128633425450042 its reverse (240054524336821), we get a palindrome (368687949786863).

The spelling of 128633425450042 in words is "one hundred twenty-eight trillion, six hundred thirty-three billion, four hundred twenty-five million, four hundred fifty thousand, forty-two".