6509373401 has 4 divisors (see below), whose sum is σ = 6516916992. Its totient is φ = 6501829812.

The previous prime is 6509373391. The next prime is 6509373413. The reversal of 6509373401 is 1043739056.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6509373401 - 2¹⁰ = 6509372377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6509378401) 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, 3770501 + ... + 3772226.

It is an arithmetic number, because the mean of its divisors is an integer number (1629229248).

Almost surely, 2^6509373401 is an apocalyptic number.

It is an amenable number.

6509373401 is a deficient number, since it is larger than the sum of its proper divisors (7543591).

6509373401 is an equidigital number, since it uses as much as digits as its factorization.

6509373401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7543590.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 6509373401 is about 80680.6879060906. The cubic root of 6509373401 is about 1867.1522327622.

The spelling of 6509373401 in words is "six billion, five hundred nine million, three hundred seventy-three thousand, four hundred one".