20401768141875 has 120 divisors (see below), whose sum is σ = 39146693860560. Its totient is φ = 10206194400000.

The previous prime is 20401768141841. The next prime is 20401768141883. The reversal of 20401768141875 is 57814186710402.

It is a happy number.

20401768141875 is a `hidden beast` number, since 20 + 401 + 7 + 6 + 8 + 141 + 8 + 75 = 666.

It is not a de Polignac number, because 20401768141875 - 2⁷ = 20401768141747 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 9849357 + ... + 11739393.

It is an arithmetic number, because the mean of its divisors is an integer number (326222448838).

Almost surely, 2^{20401768141875} is an apocalyptic number.

20401768141875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20401768141875 is a deficient number, since it is larger than the sum of its proper divisors (18744925718685).

20401768141875 is a wasteful number, since it uses less digits than its factorization.

20401768141875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890183 (or 1890165 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 54.

The spelling of 20401768141875 in words is "twenty trillion, four hundred one billion, seven hundred sixty-eight million, one hundred forty-one thousand, eight hundred seventy-five".