4129901870656 has 21 divisors (see below), whose sum is σ = 8195306286139. Its totient is φ = 2064942806464.

The previous prime is 4129901870639. The next prime is 4129901870681. The reversal of 4129901870656 is 6560781099214.

The square root of 4129901870656 is 2032216.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×4129901870656² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4129901870656.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 16130715 + ... + 16384741.

Almost surely, 2^{4129901870656} is an apocalyptic number.

4129901870656 is the 2032216-th square number.

It is an amenable number.

4129901870656 is a deficient number, since it is larger than the sum of its proper divisors (4065404415483).

4129901870656 is an frugal number, since it uses more digits than its factorization.

4129901870656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508066 (or 254029 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 58.

The spelling of 4129901870656 in words is "four trillion, one hundred twenty-nine billion, nine hundred one million, eight hundred seventy thousand, six hundred fifty-six".