33897406432 has 24 divisors (see below), whose sum is σ = 66780311976. Its totient is φ = 16937327232.

The previous prime is 33897406429. The next prime is 33897406453. The reversal of 33897406432 is 23460479833.

It is a happy number.

It is a super-2 number, since 2×33897406432² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306978 + ... + 402529.

It is an arithmetic number, because the mean of its divisors is an integer number (2782512999).

Almost surely, 2^33897406432 is an apocalyptic number.

33897406432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

33897406432 is a deficient number, since it is larger than the sum of its proper divisors (32882905544).

33897406432 is a wasteful number, since it uses less digits than its factorization.

33897406432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711010 (or 711002 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 49.

The spelling of 33897406432 in words is "thirty-three billion, eight hundred ninety-seven million, four hundred six thousand, four hundred thirty-two".