450402726538138 has 32 divisors (see below), whose sum is σ = 792319975050240. Its totient is φ = 189826660672560.

The previous prime is 450402726538123. The next prime is 450402726538229. The reversal of 450402726538138 is 831835627204054.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11462942956 + ... + 11462982247.

It is an arithmetic number, because the mean of its divisors is an integer number (24759999220320).

Almost surely, 2^{450402726538138} is an apocalyptic number.

450402726538138 is a deficient number, since it is larger than the sum of its proper divisors (341917248512102).

450402726538138 is a wasteful number, since it uses less digits than its factorization.

450402726538138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22925925282.

The product of its (nonzero) digits is 38707200, while the sum is 58.

The spelling of 450402726538138 in words is "four hundred fifty trillion, four hundred two billion, seven hundred twenty-six million, five hundred thirty-eight thousand, one hundred thirty-eight".