84541102157 has 4 divisors (see below), whose sum is σ = 84543477756. Its totient is φ = 84538726560.

The previous prime is 84541102133. The next prime is 84541102159. The reversal of 84541102157 is 75120114548.

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 38272661956 + 46268440201 = 195634^2 + 215101^2 .

It is a cyclic number.

It is not a de Polignac number, because 84541102157 - 2¹⁶ = 84541036621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84541102157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84541102159) 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 3 ways as a sum of consecutive naturals, for example, 1133594 + ... + 1205867.

It is an arithmetic number, because the mean of its divisors is an integer number (21135869439).

Almost surely, 2^84541102157 is an apocalyptic number.

It is an amenable number.

84541102157 is a deficient number, since it is larger than the sum of its proper divisors (2375599).

84541102157 is a wasteful number, since it uses less digits than its factorization.

84541102157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375598.

The product of its (nonzero) digits is 44800, while the sum is 38.

The spelling of 84541102157 in words is "eighty-four billion, five hundred forty-one million, one hundred two thousand, one hundred fifty-seven".