49000063000021 has 16 divisors (see below), whose sum is σ = 56064190542976. Its totient is φ = 41951972065536.

The previous prime is 49000063000013. The next prime is 49000063000153. The reversal of 49000063000021 is 12000036000094.

It is a cyclic number.

It is not a de Polignac number, because 49000063000021 - 2³ = 49000063000013 is a prime.

It is the 7000005-th Hogben number.

It is a self number, because there is not a number n which added to its sum of digits gives 49000063000021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49000063010021) by changing a digit.

It is a nontrivial repunit in base 7000004.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86144470 + ... + 86711416.

It is an arithmetic number, because the mean of its divisors is an integer number (3504011908936).

Almost surely, 2^{49000063000021} is an apocalyptic number.

It is an amenable number.

49000063000021 is a deficient number, since it is larger than the sum of its proper divisors (7064127542955).

49000063000021 is a wasteful number, since it uses less digits than its factorization.

49000063000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581068.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 49000063000021 in words is "forty-nine trillion, sixty-three million, twenty-one", and thus it is an aban number and an uban number.