20977444072914 has 16 divisors (see below), whose sum is σ = 47948443595328. Its totient is φ = 5993555449392.

The previous prime is 20977444072891. The next prime is 20977444072939. The reversal of 20977444072914 is 41927044477902.

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 7 ways as a sum of consecutive naturals, for example, 249731477017 + ... + 249731477100.

It is an arithmetic number, because the mean of its divisors is an integer number (2996777724708).

Almost surely, 2^{20977444072914} is an apocalyptic number.

20977444072914 is an abundant number, since it is smaller than the sum of its proper divisors (26970999522414).

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

20977444072914 is a wasteful number, since it uses less digits than its factorization.

20977444072914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499462954129.

The product of its (nonzero) digits is 28449792, while the sum is 60.

The spelling of 20977444072914 in words is "twenty trillion, nine hundred seventy-seven billion, four hundred forty-four million, seventy-two thousand, nine hundred fourteen".