10056578261 has 16 divisors (see below), whose sum is σ = 10511385600. Its totient is φ = 9615001968.

The previous prime is 10056578249. The next prime is 10056578339. The reversal of 10056578261 is 16287565001.

It is a cyclic number.

It is not a de Polignac number, because 10056578261 - 2²⁶ = 9989469397 is a prime.

It is a super-2 number, since 2×10056578261² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10056578201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296186 + ... + 328388.

It is an arithmetic number, because the mean of its divisors is an integer number (656961600).

Almost surely, 2^10056578261 is an apocalyptic number.

It is an amenable number.

10056578261 is a deficient number, since it is larger than the sum of its proper divisors (454807339).

10056578261 is an equidigital number, since it uses as much as digits as its factorization.

10056578261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32408.

The product of its (nonzero) digits is 100800, while the sum is 41.

The spelling of 10056578261 in words is "ten billion, fifty-six million, five hundred seventy-eight thousand, two hundred sixty-one".