10012548978 has 24 divisors (see below), whose sum is σ = 22835638800. Its totient is φ = 3161857464.

The previous prime is 10012548971. The next prime is 10012548989. The reversal of 10012548978 is 87984521001.

10012548978 is a `hidden beast` number, since 1 + 0 + 0 + 12 + 548 + 97 + 8 = 666.

It is a super-2 number, since 2×10012548978² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10012548971) 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 11 ways as a sum of consecutive naturals, for example, 14637888 + ... + 14638571.

It is an arithmetic number, because the mean of its divisors is an integer number (951484950).

Almost surely, 2^10012548978 is an apocalyptic number.

10012548978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10012548978 is an abundant number, since it is smaller than the sum of its proper divisors (12823089822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10012548978 is a wasteful number, since it uses less digits than its factorization.

10012548978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29276486 (or 29276483 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 10012548978 in words is "ten billion, twelve million, five hundred forty-eight thousand, nine hundred seventy-eight".