33840272464 has 10 divisors (see below), whose sum is σ = 65565527930. Its totient is φ = 16920136224.

The previous prime is 33840272447. The next prime is 33840272467. The reversal of 33840272464 is 46427204833.

It can be written as a sum of positive squares in only one way, i.e., 20386128400 + 13454144064 = 142780^2 + 115992^2 .

It is a super-2 number, since 2×33840272464² (a number of 22 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 33840272464.

It is a congruent 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 as a sum of consecutive naturals, namely, 1057508499 + ... + 1057508530.

It is an arithmetic number, because the mean of its divisors is an integer number (6556552793).

Almost surely, 2^33840272464 is an apocalyptic number.

It is an amenable number.

33840272464 is a deficient number, since it is larger than the sum of its proper divisors (31725255466).

33840272464 is a wasteful number, since it uses less digits than its factorization.

33840272464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115017037 (or 2115017031 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 43.

The spelling of 33840272464 in words is "thirty-three billion, eight hundred forty million, two hundred seventy-two thousand, four hundred sixty-four".