1042591728042 has 64 divisors (see below), whose sum is σ = 2437385904000. Its totient is φ = 329859500544.

The previous prime is 1042591728023. The next prime is 1042591728049. The reversal of 1042591728042 is 2408271952401.

1042591728042 is a `hidden beast` number, since 10 + 4 + 2 + 591 + 7 + 2 + 8 + 0 + 42 = 666.

It is a super-2 number, since 2×1042591728042² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1042591728049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5549703 + ... + 5734490.

It is an arithmetic number, because the mean of its divisors is an integer number (38084154750).

Almost surely, 2^{1042591728042} is an apocalyptic number.

1042591728042 is an abundant number, since it is smaller than the sum of its proper divisors (1394794175958).

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

1042591728042 is a wasteful number, since it uses less digits than its factorization.

1042591728042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11284292 (or 11284286 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 1042591728042 in words is "one trillion, forty-two billion, five hundred ninety-one million, seven hundred twenty-eight thousand, forty-two".