20940127524 has 18 divisors (see below), whose sum is σ = 52931989110. Its totient is φ = 6980042496.

The previous prime is 20940127513. The next prime is 20940127529. The reversal of 20940127524 is 42572104902.

20940127524 is a `hidden beast` number, since 2 + 0 + 9 + 4 + 0 + 127 + 524 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18504705024 + 2435422500 = 136032^2 + 49350^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 581670209 = 20940127524 / (2 + 0 + 9 + 4 + 0 + 1 + 2 + 7 + 5 + 2 + 4).

It is not an unprimeable number, because it can be changed into a prime (20940127529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 290835069 + ... + 290835140.

Almost surely, 2^20940127524 is an apocalyptic number.

It is an amenable number.

20940127524 is an abundant number, since it is smaller than the sum of its proper divisors (31991861586).

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

20940127524 is a wasteful number, since it uses less digits than its factorization.

20940127524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581670219 (or 581670214 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 20940127524 in words is "twenty billion, nine hundred forty million, one hundred twenty-seven thousand, five hundred twenty-four".