6464078541 has 24 divisors (see below), whose sum is σ = 9527506560. Its totient is φ = 4222296000.

The previous prime is 6464078507. The next prime is 6464078549. The reversal of 6464078541 is 1458704646.

6464078541 is a `hidden beast` number, since 64 + 6 + 40 + 7 + 8 + 541 = 666.

6464078541 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-6464078541 is a prime.

It is a super-2 number, since 2×6464078541² = 83568622768433377362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6464078549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58441 + ... + 127841.

It is an arithmetic number, because the mean of its divisors is an integer number (396979440).

Almost surely, 2^6464078541 is an apocalyptic number.

It is an amenable number.

6464078541 is a deficient number, since it is larger than the sum of its proper divisors (3063428019).

6464078541 is a wasteful number, since it uses less digits than its factorization.

6464078541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69617 (or 69614 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 6464078541 is about 80399.4934125831. The cubic root of 6464078541 is about 1862.8113477730.

The spelling of 6464078541 in words is "six billion, four hundred sixty-four million, seventy-eight thousand, five hundred forty-one".