5171778003021 has 32 divisors (see below), whose sum is σ = 8184438586368. Its totient is φ = 2843490545280.

The previous prime is 5171778002987. The next prime is 5171778003031. The reversal of 5171778003021 is 1203008771715.

It is not a de Polignac number, because 5171778003021 - 2⁶ = 5171778002957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5171778003031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42680760 + ... + 42801761.

It is an arithmetic number, because the mean of its divisors is an integer number (255763705824).

Almost surely, 2^{5171778003021} is an apocalyptic number.

It is an amenable number.

5171778003021 is a deficient number, since it is larger than the sum of its proper divisors (3012660583347).

5171778003021 is a wasteful number, since it uses less digits than its factorization.

5171778003021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85482641.

The product of its (nonzero) digits is 82320, while the sum is 42.

The spelling of 5171778003021 in words is "five trillion, one hundred seventy-one billion, seven hundred seventy-eight million, three thousand, twenty-one".