84137181134450 has 12 divisors (see below), whose sum is σ = 156495156910170. Its totient is φ = 33654872453760.

The previous prime is 84137181134437. The next prime is 84137181134459. The reversal of 84137181134450 is 5443118173148.

It can be written as a sum of positive squares in 3 ways, for example, as 58717262472961 + 25419918661489 = 7662719^2 + 5041817^2 .

It is a Harshad number since it is a multiple of its sum of digits (50), and also a Moran number because the ratio is a prime number: 1682743622689 = 84137181134450 / (8 + 4 + 1 + 3 + 7 + 1 + 8 + 1 + 1 + 3 + 4 + 4 + 5 + 0).

It is not an unprimeable number, because it can be changed into a prime (84137181134459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 841371811295 + ... + 841371811394.

Almost surely, 2^{84137181134450} is an apocalyptic number.

84137181134450 is a deficient number, since it is larger than the sum of its proper divisors (72357975775720).

84137181134450 is a wasteful number, since it uses less digits than its factorization.

84137181134450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682743622701 (or 1682743622696 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 50.

The spelling of 84137181134450 in words is "eighty-four trillion, one hundred thirty-seven billion, one hundred eighty-one million, one hundred thirty-four thousand, four hundred fifty".