1056542423604 has 24 divisors (see below), whose sum is σ = 2465314709088. Its totient is φ = 352173800160.

The previous prime is 1056542423603. The next prime is 1056542423617. The reversal of 1056542423604 is 4063242456501.

It is a happy number.

It is a super-2 number, since 2×1056542423604² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056542423603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228627 + ... + 1471514.

It is an arithmetic number, because the mean of its divisors is an integer number (102721446212).

Almost surely, 2^{1056542423604} is an apocalyptic number.

It is an amenable number.

1056542423604 is an abundant number, since it is smaller than the sum of its proper divisors (1408772285484).

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

1056542423604 is a wasteful number, since it uses less digits than its factorization.

1056542423604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751935 (or 1751933 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 1056542423604 in words is "one trillion, fifty-six billion, five hundred forty-two million, four hundred twenty-three thousand, six hundred four".