5018921007 has 4 divisors (see below), whose sum is σ = 6691894680. Its totient is φ = 3345947336.

The previous prime is 5018920997. The next prime is 5018921009. The reversal of 5018921007 is 7001298105.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5018921007 - 2²³ = 5010532399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5018921009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836486832 + ... + 836486837.

It is an arithmetic number, because the mean of its divisors is an integer number (1672973670).

Almost surely, 2^5018921007 is an apocalyptic number.

5018921007 is a deficient number, since it is larger than the sum of its proper divisors (1672973673).

5018921007 is a wasteful number, since it uses less digits than its factorization.

5018921007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672973672.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 5018921007 is about 70844.3435074389. The cubic root of 5018921007 is about 1712.1301960435.

The spelling of 5018921007 in words is "five billion, eighteen million, nine hundred twenty-one thousand, seven".