1056274753721 has 8 divisors (see below), whose sum is σ = 1157121072000. Its totient is φ = 956231992240.

The previous prime is 1056274753679. The next prime is 1056274753777. The reversal of 1056274753721 is 1273574726501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1056274753721 - 2¹⁸ = 1056274491577 is a prime.

It is a super-2 number, since 2×1056274753721² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1056274753721.

It is not an unprimeable number, because it can be changed into a prime (1056274750721) 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, 200886446 + ... + 200891703.

It is an arithmetic number, because the mean of its divisors is an integer number (144640134000).

Almost surely, 2^{1056274753721} is an apocalyptic number.

1056274753721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1056274753721 is a deficient number, since it is larger than the sum of its proper divisors (100846318279).

1056274753721 is a wasteful number, since it uses less digits than its factorization.

1056274753721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401778399.

The product of its (nonzero) digits is 2469600, while the sum is 50.

The spelling of 1056274753721 in words is "one trillion, fifty-six billion, two hundred seventy-four million, seven hundred fifty-three thousand, seven hundred twenty-one".