100510010978 has 16 divisors (see below), whose sum is σ = 165024005496. Its totient is φ = 45628755840.

The previous prime is 100510010959. The next prime is 100510010983. The reversal of 100510010978 is 879010015001.

100510010978 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 51169606849 + 49340404129 = 226207^2 + 222127^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31685051 + ... + 31688222.

Almost surely, 2^100510010978 is an apocalyptic number.

100510010978 is a deficient number, since it is larger than the sum of its proper divisors (64513994518).

100510010978 is a wasteful number, since it uses less digits than its factorization.

100510010978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63373349.

The product of its (nonzero) digits is 2520, while the sum is 32.

Adding to 100510010978 its reverse (879010015001), we get a palindrome (979520025979).

The spelling of 100510010978 in words is "one hundred billion, five hundred ten million, ten thousand, nine hundred seventy-eight".