100780188510079 has 12 divisors (see below), whose sum is σ = 109432823310000. Its totient is φ = 92768735714304.

The previous prime is 100780188510073. The next prime is 100780188510083. The reversal of 100780188510079 is 970015881087001.

It is not a de Polignac number, because 100780188510079 - 2¹⁷ = 100780188379007 is a prime.

It is a super-2 number, since 2×100780188510079² (a number of 29 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 (100780188510073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 830485954 + ... + 830607295.

It is an arithmetic number, because the mean of its divisors is an integer number (9119401942500).

Almost surely, 2^{100780188510079} is an apocalyptic number.

100780188510079 is a deficient number, since it is larger than the sum of its proper divisors (8652634799921).

100780188510079 is a wasteful number, since it uses less digits than its factorization.

100780188510079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661093634 (or 1661093621 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 55.

The spelling of 100780188510079 in words is "one hundred trillion, seven hundred eighty billion, one hundred eighty-eight million, five hundred ten thousand, seventy-nine".