10561391687954 has 8 divisors (see below), whose sum is σ = 15842110053168. Its totient is φ = 5280688336900.

The previous prime is 10561391687933. The next prime is 10561391688181. The reversal of 10561391687954 is 45978619316501.

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

It is a super-2 number, since 2×10561391687954² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1789412 + ... + 4932015.

It is an arithmetic number, because the mean of its divisors is an integer number (1980263756646).

Almost surely, 2^{10561391687954} is an apocalyptic number.

10561391687954 is a deficient number, since it is larger than the sum of its proper divisors (5280718365214).

10561391687954 is an equidigital number, since it uses as much as digits as its factorization.

10561391687954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7507080.

The product of its (nonzero) digits is 48988800, while the sum is 65.

The spelling of 10561391687954 in words is "ten trillion, five hundred sixty-one billion, three hundred ninety-one million, six hundred eighty-seven thousand, nine hundred fifty-four".