33954499421 has 4 divisors (see below), whose sum is σ = 34266008700. Its totient is φ = 33642990144.

The previous prime is 33954499373. The next prime is 33954499441. The reversal of 33954499421 is 12499445933.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9739716100 + 24214783321 = 98690^2 + 155611^2 .

It is a cyclic number.

It is not a de Polignac number, because 33954499421 - 2²² = 33950305117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33954499441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155754476 + ... + 155754693.

It is an arithmetic number, because the mean of its divisors is an integer number (8566502175).

Almost surely, 2^33954499421 is an apocalyptic number.

It is an amenable number.

33954499421 is a deficient number, since it is larger than the sum of its proper divisors (311509279).

33954499421 is a wasteful number, since it uses less digits than its factorization.

33954499421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311509278.

The product of its digits is 4199040, while the sum is 53.

The spelling of 33954499421 in words is "thirty-three billion, nine hundred fifty-four million, four hundred ninety-nine thousand, four hundred twenty-one".