34489251528781 has 16 divisors (see below), whose sum is σ = 41735157171840. Its totient is φ = 27823085360640.

The previous prime is 34489251528773. The next prime is 34489251528929. The reversal of 34489251528781 is 18782515298443.

It is a cyclic number.

It is not a de Polignac number, because 34489251528781 - 2³ = 34489251528773 is a prime.

It is a super-2 number, since 2×34489251528781² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34489251828781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19907950 + ... + 21570928.

It is an arithmetic number, because the mean of its divisors is an integer number (2608447323240).

Almost surely, 2^{34489251528781} is an apocalyptic number.

It is an amenable number.

34489251528781 is a deficient number, since it is larger than the sum of its proper divisors (7245905643059).

34489251528781 is a wasteful number, since it uses less digits than its factorization.

34489251528781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837284.

The product of its digits is 154828800, while the sum is 67.

The spelling of 34489251528781 in words is "thirty-four trillion, four hundred eighty-nine billion, two hundred fifty-one million, five hundred twenty-eight thousand, seven hundred eighty-one".