10515011078 has 48 divisors (see below), whose sum is σ = 18719579760. Its totient is φ = 4400256960.

The previous prime is 10515011077. The next prime is 10515011107. The reversal of 10515011078 is 87011051501.

It is a happy number.

10515011078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10515011078² (a number of 21 digits) contains 22 as substring.

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 10515011078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10515011077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1244753 + ... + 1253171.

It is an arithmetic number, because the mean of its divisors is an integer number (389991245).

Almost surely, 2^10515011078 is an apocalyptic number.

10515011078 is a deficient number, since it is larger than the sum of its proper divisors (8204568682).

10515011078 is a wasteful number, since it uses less digits than its factorization.

10515011078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8853 (or 8842 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 29.

Adding to 10515011078 its reverse (87011051501), we get a palindrome (97526062579).

The spelling of 10515011078 in words is "ten billion, five hundred fifteen million, eleven thousand, seventy-eight".