101865384687 has 64 divisors (see below), whose sum is σ = 156871655424. Its totient is φ = 58194407040.

The previous prime is 101865384631. The next prime is 101865384689. The reversal of 101865384687 is 786483568101.

It is a happy number.

It is not a de Polignac number, because 101865384687 - 2⁸ = 101865384431 is a prime.

It is a super-4 number, since 4×101865384687⁴ (a number of 45 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101865384689) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15995778 + ... + 16002144.

It is an arithmetic number, because the mean of its divisors is an integer number (2451119616).

Almost surely, 2^101865384687 is an apocalyptic number.

101865384687 is a deficient number, since it is larger than the sum of its proper divisors (55006270737).

101865384687 is a wasteful number, since it uses less digits than its factorization.

101865384687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6708.

The product of its (nonzero) digits is 7741440, while the sum is 57.

The spelling of 101865384687 in words is "one hundred one billion, eight hundred sixty-five million, three hundred eighty-four thousand, six hundred eighty-seven".