5198713921 has 8 divisors (see below), whose sum is σ = 5210274240. Its totient is φ = 5187166512.

The previous prime is 5198713903. The next prime is 5198713969. The reversal of 5198713921 is 1293178915.

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

It is a cyclic number.

It is not a de Polignac number, because 5198713921 - 2⁹ = 5198713409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5198713321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1390771 + ... + 1394503.

It is an arithmetic number, because the mean of its divisors is an integer number (651284280).

Almost surely, 2^5198713921 is an apocalyptic number.

It is an amenable number.

5198713921 is a deficient number, since it is larger than the sum of its proper divisors (11560319).

5198713921 is a wasteful number, since it uses less digits than its factorization.

5198713921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6455.

The product of its digits is 136080, while the sum is 46.

The square root of 5198713921 is about 72102.1076044244. The cubic root of 5198713921 is about 1732.3353717358.

The spelling of 5198713921 in words is "five billion, one hundred ninety-eight million, seven hundred thirteen thousand, nine hundred twenty-one".