6400000046 has 16 divisors (see below), whose sum is σ = 10526997168. Its totient is φ = 2894016000.

The previous prime is 6400000031. The next prime is 6400000049.

6400000046 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 6399999973 and 6400000027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6400000049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 749405 + ... + 757896.

It is an arithmetic number, because the mean of its divisors is an integer number (657937323).

Almost surely, 2^6400000046 is an apocalyptic number.

6400000046 is a deficient number, since it is larger than the sum of its proper divisors (4126997122).

6400000046 is a wasteful number, since it uses less digits than its factorization.

6400000046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507507.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 6400000046 is about 80000.0002875000. Note that the first 3 decimals coincide. The cubic root of 6400000046 is about 1856.6355378933.

It can be divided in two parts, 64000000 and 46, that added together give a palindrome (64000046).

The spelling of 6400000046 in words is "six billion, four hundred million, forty-six", and thus it is an aban number.