84045149288101 has 4 divisors (see below), whose sum is σ = 84480616383052. Its totient is φ = 83609682193152.

The previous prime is 84045149288059. The next prime is 84045149288171. The reversal of 84045149288101 is 10188294154048.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57892163516100 + 26152985772001 = 7608690^2 + 5113999^2 .

It is a cyclic number.

It is not a de Polignac number, because 84045149288101 - 2¹¹ = 84045149286053 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 (84045149288171) 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, 217733547186 + ... + 217733547571.

It is an arithmetic number, because the mean of its divisors is an integer number (21120154095763).

Almost surely, 2^{84045149288101} is an apocalyptic number.

84045149288101 is the 5292925-th hex number.

It is an amenable number.

84045149288101 is a deficient number, since it is larger than the sum of its proper divisors (435467094951).

84045149288101 is a wasteful number, since it uses less digits than its factorization.

84045149288101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435467094950.

The product of its (nonzero) digits is 2949120, while the sum is 55.

The spelling of 84045149288101 in words is "eighty-four trillion, forty-five billion, one hundred forty-nine million, two hundred eighty-eight thousand, one hundred one".