6432696437 has 4 divisors (see below), whose sum is σ = 6448738476. Its totient is φ = 6416654400.

The previous prime is 6432696397. The next prime is 6432696463. The reversal of 6432696437 is 7346962346.

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 6203295121 + 229401316 = 78761^2 + 15146^2 .

It is a cyclic number.

It is not a de Polignac number, because 6432696437 - 2¹⁰ = 6432695413 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 (6432696937) 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, 8020418 + ... + 8021219.

It is an arithmetic number, because the mean of its divisors is an integer number (1612184619).

Almost surely, 2^6432696437 is an apocalyptic number.

It is an amenable number.

6432696437 is a deficient number, since it is larger than the sum of its proper divisors (16042039).

6432696437 is a wasteful number, since it uses less digits than its factorization.

6432696437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16042038.

The product of its digits is 3919104, while the sum is 50.

The square root of 6432696437 is about 80204.0923955879. The cubic root of 6432696437 is about 1859.7919022786.

The spelling of 6432696437 in words is "six billion, four hundred thirty-two million, six hundred ninety-six thousand, four hundred thirty-seven".