4006134502625 has 16 divisors (see below), whose sum is σ = 5121598691664. Its totient is φ = 3126739120000.

The previous prime is 4006134502621. The next prime is 4006134502673. The reversal of 4006134502625 is 5262054316004.

It can be written as a sum of positive squares in 8 ways, for example, as 2399078818816 + 1607055683809 = 1548896^2 + 1267697^2 .

It is not a de Polignac number, because 4006134502625 - 2² = 4006134502621 is a prime.

It is a super-2 number, since 2×4006134502625² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4006134502621) 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, 390837266 + ... + 390847515.

It is an arithmetic number, because the mean of its divisors is an integer number (320099918229).

Almost surely, 2^{4006134502625} is an apocalyptic number.

It is an amenable number.

4006134502625 is a deficient number, since it is larger than the sum of its proper divisors (1115464189039).

4006134502625 is an equidigital number, since it uses as much as digits as its factorization.

4006134502625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781684837 (or 781684827 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 4006134502625 its reverse (5262054316004), we get a palindrome (9268188818629).

The spelling of 4006134502625 in words is "four trillion, six billion, one hundred thirty-four million, five hundred two thousand, six hundred twenty-five".