20877461883541 has 16 divisors (see below), whose sum is σ = 21807142967808. Its totient is φ = 19949620086000.

The previous prime is 20877461883539. The next prime is 20877461883557. The reversal of 20877461883541 is 14538816477802.

It is a cyclic number.

It is not a de Polignac number, because 20877461883541 - 2¹ = 20877461883539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20877461823541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106261606 + ... + 106457896.

It is an arithmetic number, because the mean of its divisors is an integer number (1362946435488).

Almost surely, 2^{20877461883541} is an apocalyptic number.

It is an amenable number.

20877461883541 is a deficient number, since it is larger than the sum of its proper divisors (929681084267).

20877461883541 is a wasteful number, since it uses less digits than its factorization.

20877461883541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200952.

The product of its (nonzero) digits is 72253440, while the sum is 64.

The spelling of 20877461883541 in words is "twenty trillion, eight hundred seventy-seven billion, four hundred sixty-one million, eight hundred eighty-three thousand, five hundred forty-one".