6400675437 has 16 divisors (see below), whose sum is σ = 9275038080. Its totient is φ = 3902738112.

The previous prime is 6400675409. The next prime is 6400675441. The reversal of 6400675437 is 7345760046.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-6400675437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6400676437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 748593 + ... + 757094.

It is an arithmetic number, because the mean of its divisors is an integer number (579689880).

Almost surely, 2^6400675437 is an apocalyptic number.

It is an amenable number.

6400675437 is a deficient number, since it is larger than the sum of its proper divisors (2874362643).

6400675437 is a wasteful number, since it uses less digits than its factorization.

6400675437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505812.

The product of its (nonzero) digits is 423360, while the sum is 42.

The square root of 6400675437 is about 80004.2213698752. The cubic root of 6400675437 is about 1856.7008457483.

The spelling of 6400675437 in words is "six billion, four hundred million, six hundred seventy-five thousand, four hundred thirty-seven".