100561879127 has 8 divisors (see below), whose sum is σ = 100668891072. Its totient is φ = 100454911200.

The previous prime is 100561879081. The next prime is 100561879129. The reversal of 100561879127 is 721978165001.

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

It is a cyclic number.

It is not a de Polignac number, because 100561879127 - 2¹⁴ = 100561862743 is a prime.

It is a super-2 number, since 2×100561879127² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100561879129) 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 in 7 ways as a sum of consecutive naturals, for example, 6462977 + ... + 6478517.

It is an arithmetic number, because the mean of its divisors is an integer number (12583611384).

Almost surely, 2^100561879127 is an apocalyptic number.

100561879127 is a deficient number, since it is larger than the sum of its proper divisors (107011945).

100561879127 is a wasteful number, since it uses less digits than its factorization.

100561879127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22009.

The product of its (nonzero) digits is 211680, while the sum is 47.

The spelling of 100561879127 in words is "one hundred billion, five hundred sixty-one million, eight hundred seventy-nine thousand, one hundred twenty-seven".