10978504878 has 32 divisors (see below), whose sum is σ = 24185670912. Its totient is φ = 3294518400.

The previous prime is 10978504861. The next prime is 10978504891. The reversal of 10978504878 is 87840587901.

It is a super-3 number, since 3×10978504878³ (a number of 31 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 800683 + ... + 814278.

It is an arithmetic number, because the mean of its divisors is an integer number (755802216).

Almost surely, 2^10978504878 is an apocalyptic number.

10978504878 is an abundant number, since it is smaller than the sum of its proper divisors (13207166034).

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

10978504878 is a wasteful number, since it uses less digits than its factorization.

10978504878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615080.

The product of its (nonzero) digits is 4515840, while the sum is 57.

The spelling of 10978504878 in words is "ten billion, nine hundred seventy-eight million, five hundred four thousand, eight hundred seventy-eight".