6437532464 has 40 divisors (see below), whose sum is σ = 13713788928. Its totient is φ = 2903100480.

The previous prime is 6437532461. The next prime is 6437532469. The reversal of 6437532464 is 4642357346.

It is a super-2 number, since 2×6437532464² = 82883648450107822592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (6437532461) 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, 121652 + ... + 166355.

Almost surely, 2^6437532464 is an apocalyptic number.

It is an amenable number.

6437532464 is an abundant number, since it is smaller than the sum of its proper divisors (7276256464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6437532464 is a wasteful number, since it uses less digits than its factorization.

6437532464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288153 (or 288147 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 44.

The square root of 6437532464 is about 80234.2349873170. The cubic root of 6437532464 is about 1860.2578422370.

The spelling of 6437532464 in words is "six billion, four hundred thirty-seven million, five hundred thirty-two thousand, four hundred sixty-four".