20940127542 has 12 divisors (see below), whose sum is σ = 45370276380. Its totient is φ = 6980042508.

The previous prime is 20940127531. The next prime is 20940127609. The reversal of 20940127542 is 24572104902.

20940127542 is a `hidden beast` number, since 2 + 0 + 94 + 0 + 1 + 27 + 542 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 20940127497 and 20940127506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 581670192 + ... + 581670227.

It is an arithmetic number, because the mean of its divisors is an integer number (3780856365).

Almost surely, 2^20940127542 is an apocalyptic number.

20940127542 is an abundant number, since it is smaller than the sum of its proper divisors (24430148838).

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

20940127542 is a wasteful number, since it uses less digits than its factorization.

20940127542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163340427 (or 1163340424 counting only the distinct ones).

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

The spelling of 20940127542 in words is "twenty billion, nine hundred forty million, one hundred twenty-seven thousand, five hundred forty-two".