4013878902556 has 6 divisors (see below), whose sum is σ = 7024288079480. Its totient is φ = 2006939451276.

The previous prime is 4013878902443. The next prime is 4013878902587. The reversal of 4013878902556 is 6552098783104.

It is a super-2 number, since 2×4013878902556² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4013878902556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501734862816 + ... + 501734862823.

It is a 1-persistent number, because it is pandigital, but 2⋅4013878902556 = 8027757805112 is not.

Almost surely, 2^{4013878902556} is an apocalyptic number.

It is an amenable number.

4013878902556 is a deficient number, since it is larger than the sum of its proper divisors (3010409176924).

4013878902556 is a wasteful number, since it uses less digits than its factorization.

4013878902556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003469725643 (or 1003469725641 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 58.

The spelling of 4013878902556 in words is "four trillion, thirteen billion, eight hundred seventy-eight million, nine hundred two thousand, five hundred fifty-six".