5169170947644 has 144 divisors (see below), whose sum is σ = 14768908277760. Its totient is φ = 1510249680000.

The previous prime is 5169170947571. The next prime is 5169170947651. The reversal of 5169170947644 is 4467490719615.

5169170947644 is a `hidden beast` number, since 5 + 1 + 6 + 91 + 70 + 9 + 476 + 4 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2519569 + ... + 4084919.

It is an arithmetic number, because the mean of its divisors is an integer number (102561863040).

Almost surely, 2^{5169170947644} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5169170947644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7384454138880).

5169170947644 is an abundant number, since it is smaller than the sum of its proper divisors (9599737330116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5169170947644 is a wasteful number, since it uses less digits than its factorization.

5169170947644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565672 (or 1565667 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 63.

The spelling of 5169170947644 in words is "five trillion, one hundred sixty-nine billion, one hundred seventy million, nine hundred forty-seven thousand, six hundred forty-four".