6409500373 has 4 divisors (see below), whose sum is σ = 6411320140. Its totient is φ = 6407680608.

The previous prime is 6409500359. The next prime is 6409500379. The reversal of 6409500373 is 3730059046.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3561463684 + 2848036689 = 59678^2 + 53367^2 .

It is a cyclic number.

It is not a de Polignac number, because 6409500373 - 2¹⁷ = 6409369301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6409500379) 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, 904590 + ... + 911647.

It is an arithmetic number, because the mean of its divisors is an integer number (1602830035).

Almost surely, 2^6409500373 is an apocalyptic number.

It is an amenable number.

6409500373 is a deficient number, since it is larger than the sum of its proper divisors (1819767).

6409500373 is a wasteful number, since it uses less digits than its factorization.

6409500373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1819766.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 6409500373 is about 80059.3553121682. The cubic root of 6409500373 is about 1857.5537631037.

The spelling of 6409500373 in words is "six billion, four hundred nine million, five hundred thousand, three hundred seventy-three".