9940204000542 has 16 divisors (see below), whose sum is σ = 19880731124352. Its totient is φ = 3313347479640.

The previous prime is 9940204000427. The next prime is 9940204000547. The reversal of 9940204000542 is 2450004020499.

It is a super-2 number, since 2×9940204000542² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9940204000542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9940204000547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13062634 + ... + 13802637.

It is an arithmetic number, because the mean of its divisors is an integer number (1242545695272).

Almost surely, 2^{9940204000542} is an apocalyptic number.

9940204000542 is an abundant number, since it is smaller than the sum of its proper divisors (9940527123810).

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

9940204000542 is a wasteful number, since it uses less digits than its factorization.

9940204000542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26926943.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 9940204000542 in words is "nine trillion, nine hundred forty billion, two hundred four million, five hundred forty-two", and thus it is an aban number.