5165421686 has 8 divisors (see below), whose sum is σ = 7998072384. Its totient is φ = 2499397560.

The previous prime is 5165421671. The next prime is 5165421697. The reversal of 5165421686 is 6861245615.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41656565 + ... + 41656688.

It is an arithmetic number, because the mean of its divisors is an integer number (999759048).

Almost surely, 2^5165421686 is an apocalyptic number.

5165421686 is a deficient number, since it is larger than the sum of its proper divisors (2832650698).

5165421686 is a wasteful number, since it uses less digits than its factorization.

5165421686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83313286.

The product of its digits is 345600, while the sum is 44.

The square root of 5165421686 is about 71870.8681316707. The cubic root of 5165421686 is about 1728.6295277430.

The spelling of 5165421686 in words is "five billion, one hundred sixty-five million, four hundred twenty-one thousand, six hundred eighty-six".