20974094132740 has 48 divisors (see below), whose sum is σ = 50338852833024. Its totient is φ = 7190971286400.

The previous prime is 20974094132617. The next prime is 20974094132753. The reversal of 20974094132740 is 4723149047902.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5473110 + ... + 8479570.

It is an arithmetic number, because the mean of its divisors is an integer number (1048726100688).

Almost surely, 2^{20974094132740} is an apocalyptic number.

20974094132740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20974094132740 is an abundant number, since it is smaller than the sum of its proper divisors (29364758700284).

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

20974094132740 is a wasteful number, since it uses less digits than its factorization.

20974094132740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3056308 (or 3056306 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 52.

The spelling of 20974094132740 in words is "twenty trillion, nine hundred seventy-four billion, ninety-four million, one hundred thirty-two thousand, seven hundred forty".