6406637152 has 24 divisors (see below), whose sum is σ = 12724694136. Its totient is φ = 3174968832.

The previous prime is 6406637077. The next prime is 6406637177. The reversal of 6406637152 is 2517366046.

It is a super-2 number, since 2×6406637152² = 82089999194773342208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 882258 + ... + 889489.

It is an arithmetic number, because the mean of its divisors is an integer number (530195589).

Almost surely, 2^6406637152 is an apocalyptic number.

It is an amenable number.

6406637152 is a deficient number, since it is larger than the sum of its proper divisors (6318056984).

6406637152 is a wasteful number, since it uses less digits than its factorization.

6406637152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771870 (or 1771862 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 6406637152 is about 80041.4714507423. The cubic root of 6406637152 is about 1857.2771227628.

The spelling of 6406637152 in words is "six billion, four hundred six million, six hundred thirty-seven thousand, one hundred fifty-two".