102101057847 has 20 divisors (see below), whose sum is σ = 152669107360. Its totient is φ = 68001423264.

The previous prime is 102101057837. The next prime is 102101057869. The reversal of 102101057847 is 748750101201.

102101057847 is a `hidden beast` number, since 10 + 21 + 0 + 10 + 578 + 47 = 666.

It is not a de Polignac number, because 102101057847 - 2⁴ = 102101057831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102101057837) 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 19 ways as a sum of consecutive naturals, for example, 526447 + ... + 693792.

It is an arithmetic number, because the mean of its divisors is an integer number (7633455368).

Almost surely, 2^102101057847 is an apocalyptic number.

102101057847 is a deficient number, since it is larger than the sum of its proper divisors (50568049513).

102101057847 is a wasteful number, since it uses less digits than its factorization.

102101057847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221284 (or 1221275 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 36.

The spelling of 102101057847 in words is "one hundred two billion, one hundred one million, fifty-seven thousand, eight hundred forty-seven".