2126878428000 has 96 divisors (see below), whose sum is σ = 6967653769440. Its totient is φ = 567167577600.

The previous prime is 2126878427981. The next prime is 2126878428011. The reversal of 2126878428000 is 8248786212.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×2126878428000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88607935 + ... + 88631934.

It is an arithmetic number, because the mean of its divisors is an integer number (72579726765).

Almost surely, 2^{2126878428000} is an apocalyptic number.

2126878428000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2126878428000 is an abundant number, since it is smaller than the sum of its proper divisors (4840775341440).

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

2126878428000 is a wasteful number, since it uses less digits than its factorization.

2126878428000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177239897 (or 177239879 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 48.

The spelling of 2126878428000 in words is "two trillion, one hundred twenty-six billion, eight hundred seventy-eight million, four hundred twenty-eight thousand".