20888135400876 has 24 divisors (see below), whose sum is σ = 48788564504064. Its totient is φ = 6955628671440.

The previous prime is 20888135400871. The next prime is 20888135400883. The reversal of 20888135400876 is 67800453188802.

It is not an unprimeable number, because it can be changed into a prime (20888135400871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 885378820 + ... + 885402411.

It is an arithmetic number, because the mean of its divisors is an integer number (2032856854336).

Almost surely, 2^{20888135400876} is an apocalyptic number.

It is an amenable number.

20888135400876 is an abundant number, since it is smaller than the sum of its proper divisors (27900429103188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20888135400876 is a wasteful number, since it uses less digits than its factorization.

20888135400876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770782221 (or 1770782219 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 60.

The spelling of 20888135400876 in words is "twenty trillion, eight hundred eighty-eight billion, one hundred thirty-five million, four hundred thousand, eight hundred seventy-six".