100000100009977 has 4 divisors (see below), whose sum is σ = 100086084619920. Its totient is φ = 99914115400036.

The previous prime is 100000100009969. The next prime is 100000100009987. The reversal of 100000100009977 is 779900001000001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100000100009977 - 2³ = 100000100009969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100000100009917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42992303227 + ... + 42992305552.

It is an arithmetic number, because the mean of its divisors is an integer number (25021521154980).

Almost surely, 2^{100000100009977} is an apocalyptic number.

It is an amenable number.

100000100009977 is a deficient number, since it is larger than the sum of its proper divisors (85984609943).

100000100009977 is an equidigital number, since it uses as much as digits as its factorization.

100000100009977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85984609942.

The product of its (nonzero) digits is 3969, while the sum is 34.

Adding to 100000100009977 its reverse (779900001000001), we get a palindrome (879900101009978).

The spelling of 100000100009977 in words is "one hundred trillion, one hundred million, nine thousand, nine hundred seventy-seven".