33890485821 has 8 divisors (see below), whose sum is σ = 45227556960. Its totient is φ = 22573535952.

The previous prime is 33890485799. The next prime is 33890485823. The reversal of 33890485821 is 12858409833.

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

It is not a de Polignac number, because 33890485821 - 2²⁵ = 33856931389 is a prime.

It is a super-2 number, since 2×33890485821² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33890485823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5026386 + ... + 5033123.

It is an arithmetic number, because the mean of its divisors is an integer number (5653444620).

Almost surely, 2^33890485821 is an apocalyptic number.

It is an amenable number.

33890485821 is a deficient number, since it is larger than the sum of its proper divisors (11337071139).

33890485821 is a wasteful number, since it uses less digits than its factorization.

33890485821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10060635.

The product of its (nonzero) digits is 1658880, while the sum is 51.

The spelling of 33890485821 in words is "thirty-three billion, eight hundred ninety million, four hundred eighty-five thousand, eight hundred twenty-one".