5181861515374 has 8 divisors (see below), whose sum is σ = 7773532641000. Its totient is φ = 2590683968376.

The previous prime is 5181861515371. The next prime is 5181861515419. The reversal of 5181861515374 is 4735151681815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5181861515371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123368409 + ... + 123410404.

It is an arithmetic number, because the mean of its divisors is an integer number (971691580125).

Almost surely, 2^{5181861515374} is an apocalyptic number.

5181861515374 is a deficient number, since it is larger than the sum of its proper divisors (2591671125626).

5181861515374 is a wasteful number, since it uses less digits than its factorization.

5181861515374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246789314.

The product of its digits is 4032000, while the sum is 55.

The spelling of 5181861515374 in words is "five trillion, one hundred eighty-one billion, eight hundred sixty-one million, five hundred fifteen thousand, three hundred seventy-four".