33213534420454 has 4 divisors (see below), whose sum is σ = 49820301630684. Its totient is φ = 16606767210226.

The previous prime is 33213534420427. The next prime is 33213534420461. The reversal of 33213534420454 is 45402443531233.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×33213534420454² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33213534420454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8303383605112 + ... + 8303383605115.

It is an arithmetic number, because the mean of its divisors is an integer number (12455075407671).

Almost surely, 2^{33213534420454} is an apocalyptic number.

33213534420454 is a deficient number, since it is larger than the sum of its proper divisors (16606767210230).

33213534420454 is a wasteful number, since it uses less digits than its factorization.

33213534420454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16606767210229.

The product of its (nonzero) digits is 2073600, while the sum is 43.

Adding to 33213534420454 its reverse (45402443531233), we get a palindrome (78615977951687).

The spelling of 33213534420454 in words is "thirty-three trillion, two hundred thirteen billion, five hundred thirty-four million, four hundred twenty thousand, four hundred fifty-four".