535120021534 has 48 divisors (see below), whose sum is σ = 938684116800. Its totient is φ = 228122474496.

The previous prime is 535120021523. The next prime is 535120021567. The reversal of 535120021534 is 435120021535.

It is a junction number, because it is equal to n+sod(n) for n = 535120021496 and 535120021505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21746742 + ... + 21771334.

It is an arithmetic number, because the mean of its divisors is an integer number (19555919100).

Almost surely, 2^535120021534 is an apocalyptic number.

535120021534 is a deficient number, since it is larger than the sum of its proper divisors (403564095266).

535120021534 is a wasteful number, since it uses less digits than its factorization.

535120021534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25777 (or 25770 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Subtracting from 535120021534 its reverse (435120021535), we obtain a palindrome (99999999999).

The spelling of 535120021534 in words is "five hundred thirty-five billion, one hundred twenty million, twenty-one thousand, five hundred thirty-four".