33840272465 has 8 divisors (see below), whose sum is σ = 41274037608. Its totient is φ = 26628410880.

The previous prime is 33840272447. The next prime is 33840272467. The reversal of 33840272465 is 56427204833.

It can be written as a sum of positive squares in 4 ways, for example, as 1482019009 + 32358253456 = 38497^2 + 179884^2 .

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

It is not a de Polignac number, because 33840272465 - 2¹⁴ = 33840256081 is a prime.

It is a super-2 number, since 2×33840272465² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33840272467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55475552 + ... + 55476161.

It is an arithmetic number, because the mean of its divisors is an integer number (5159254701).

Almost surely, 2^33840272465 is an apocalyptic number.

It is an amenable number.

33840272465 is a deficient number, since it is larger than the sum of its proper divisors (7433765143).

33840272465 is a wasteful number, since it uses less digits than its factorization.

33840272465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110951779.

The product of its (nonzero) digits is 967680, while the sum is 44.

The spelling of 33840272465 in words is "thirty-three billion, eight hundred forty million, two hundred seventy-two thousand, four hundred sixty-five".