2021634364126 has 64 divisors (see below), whose sum is σ = 3665830694400. Its totient is φ = 826878689280.

The previous prime is 2021634364093. The next prime is 2021634364159. The reversal of 2021634364126 is 6214634361202.

It is an interprime number because it is at equal distance from previous prime (2021634364093) and next prime (2021634364159).

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, 1486851 + ... + 2500798.

It is an arithmetic number, because the mean of its divisors is an integer number (57278604600).

Almost surely, 2^{2021634364126} is an apocalyptic number.

2021634364126 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2021634364126 is a deficient number, since it is larger than the sum of its proper divisors (1644196330274).

2021634364126 is a wasteful number, since it uses less digits than its factorization.

2021634364126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3987749.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 2021634364126 in words is "two trillion, twenty-one billion, six hundred thirty-four million, three hundred sixty-four thousand, one hundred twenty-six".