10581007778 has 16 divisors (see below), whose sum is σ = 17424664704. Its totient is φ = 4778913360.

The previous prime is 10581007777. The next prime is 10581007783. The reversal of 10581007778 is 87770018501.

It is a happy number.

It is a super-2 number, since 2×10581007778² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10581007777) 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 7 ways as a sum of consecutive naturals, for example, 1528250 + ... + 1535157.

It is an arithmetic number, because the mean of its divisors is an integer number (1089041544).

Almost surely, 2^10581007778 is an apocalyptic number.

10581007778 is a deficient number, since it is larger than the sum of its proper divisors (6843656926).

10581007778 is a wasteful number, since it uses less digits than its factorization.

10581007778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063577.

The product of its (nonzero) digits is 109760, while the sum is 44.

The spelling of 10581007778 in words is "ten billion, five hundred eighty-one million, seven thousand, seven hundred seventy-eight".