33890311974 has 16 divisors (see below), whose sum is σ = 67878722880. Its totient is φ = 11280420840.

The previous prime is 33890311969. The next prime is 33890311993. The reversal of 33890311974 is 47911309833.

It is a happy number.

It is a super-2 number, since 2×33890311974² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4082964 + ... + 4091255.

It is an arithmetic number, because the mean of its divisors is an integer number (4242420180).

Almost surely, 2^33890311974 is an apocalyptic number.

33890311974 is an abundant number, since it is smaller than the sum of its proper divisors (33988410906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33890311974 is a wasteful number, since it uses less digits than its factorization.

33890311974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8174915.

The product of its (nonzero) digits is 489888, while the sum is 48.

The spelling of 33890311974 in words is "thirty-three billion, eight hundred ninety million, three hundred eleven thousand, nine hundred seventy-four".