100007957978 has 8 divisors (see below), whose sum is σ = 156534195168. Its totient is φ = 47829892924.

The previous prime is 100007957939. The next prime is 100007957993. The reversal of 100007957978 is 879759700001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1087042976 + ... + 1087043067.

It is an arithmetic number, because the mean of its divisors is an integer number (19566774396).

Almost surely, 2^100007957978 is an apocalyptic number.

100007957978 is a deficient number, since it is larger than the sum of its proper divisors (56526237190).

100007957978 is a wasteful number, since it uses less digits than its factorization.

100007957978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174086068.

The product of its (nonzero) digits is 1111320, while the sum is 53.

The spelling of 100007957978 in words is "one hundred billion, seven million, nine hundred fifty-seven thousand, nine hundred seventy-eight".