100978455796 has 6 divisors (see below), whose sum is σ = 176712297650. Its totient is φ = 50489227896.

The previous prime is 100978455769. The next prime is 100978455797. The reversal of 100978455796 is 697554879001.

It can be written as a sum of positive squares in only one way, i.e., 91095312400 + 9883143396 = 301820^2 + 99414^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100978455797) 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 as a sum of consecutive naturals, namely, 12622306971 + ... + 12622306978.

Almost surely, 2^100978455796 is an apocalyptic number.

It is an amenable number.

100978455796 is a deficient number, since it is larger than the sum of its proper divisors (75733841854).

100978455796 is a wasteful number, since it uses less digits than its factorization.

100978455796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25244613953 (or 25244613951 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 61.

The spelling of 100978455796 in words is "one hundred billion, nine hundred seventy-eight million, four hundred fifty-five thousand, seven hundred ninety-six".