2100456427902 has 64 divisors (see below), whose sum is σ = 4961052102144. Its totient is φ = 580328323200.

The previous prime is 2100456427831. The next prime is 2100456427969. The reversal of 2100456427902 is 2097246540012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 31 ways as a sum of consecutive naturals, for example, 3892849 + ... + 4399452.

It is an arithmetic number, because the mean of its divisors is an integer number (77516439096).

Almost surely, 2^{2100456427902} is an apocalyptic number.

2100456427902 is an abundant number, since it is smaller than the sum of its proper divisors (2860595674242).

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

2100456427902 is a wasteful number, since it uses less digits than its factorization.

2100456427902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8292513.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 2100456427902 in words is "two trillion, one hundred billion, four hundred fifty-six million, four hundred twenty-seven thousand, nine hundred two".