20934474533442 has 30 divisors (see below), whose sum is σ = 46908860464323. Its totient is φ = 6978138765948.

The previous prime is 20934474533417. The next prime is 20934474533473. The reversal of 20934474533442 is 24433547443902.

20934474533442 is a `hidden beast` number, since 2 + 0 + 9 + 34 + 4 + 74 + 533 + 4 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10467237266721 + 10467237266721 = 3235311^2 + 3235311^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3235311.

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

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 58055859 + ... + 58415337.

Almost surely, 2^{20934474533442} is an apocalyptic number.

20934474533442 is an abundant number, since it is smaller than the sum of its proper divisors (25974385930881).

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

20934474533442 is an frugal number, since it uses more digits than its factorization.

20934474533442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718972 (or 359484 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 54.

The spelling of 20934474533442 in words is "twenty trillion, nine hundred thirty-four billion, four hundred seventy-four million, five hundred thirty-three thousand, four hundred forty-two".