20863872337428 has 72 divisors (see below), whose sum is σ = 58269433779648. Its totient is φ = 6260940373248.

The previous prime is 20863872337423. The next prime is 20863872337453. The reversal of 20863872337428 is 82473327836802.

20863872337428 is a `hidden beast` number, since 2 + 0 + 86 + 3 + 87 + 23 + 37 + 428 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20863872337423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 741101026 + ... + 741129177.

It is an arithmetic number, because the mean of its divisors is an integer number (809297691384).

Almost surely, 2^{20863872337428} is an apocalyptic number.

It is an amenable number.

20863872337428 is an abundant number, since it is smaller than the sum of its proper divisors (37405561442220).

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

20863872337428 is a wasteful number, since it uses less digits than its factorization.

20863872337428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482230253 (or 1482230248 counting only the distinct ones).

The product of its (nonzero) digits is 130056192, while the sum is 63.

The spelling of 20863872337428 in words is "twenty trillion, eight hundred sixty-three billion, eight hundred seventy-two million, three hundred thirty-seven thousand, four hundred twenty-eight".