13820434052 has 6 divisors (see below), whose sum is σ = 24185759598. Its totient is φ = 6910217024.

The previous prime is 13820434031. The next prime is 13820434063. The reversal of 13820434052 is 25043402831.

It can be written as a sum of positive squares in only one way, i.e., 8218510336 + 5601923716 = 90656^2 + 74846^2 .

It is a super-2 number, since 2×13820434052² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1727554253 + ... + 1727554260.

It is an arithmetic number, because the mean of its divisors is an integer number (4030959933).

Almost surely, 2^13820434052 is an apocalyptic number.

It is an amenable number.

13820434052 is a deficient number, since it is larger than the sum of its proper divisors (10365325546).

13820434052 is a wasteful number, since it uses less digits than its factorization.

13820434052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3455108517 (or 3455108515 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 13820434052 its reverse (25043402831), we get a palindrome (38863836883).

The spelling of 13820434052 in words is "thirteen billion, eight hundred twenty million, four hundred thirty-four thousand, fifty-two".