64748511 has 16 divisors (see below), whose sum is σ = 97498720. Its totient is φ = 42456960.

The previous prime is 64748501. The next prime is 64748531. The reversal of 64748511 is 11584746.

It is a happy number.

64748511 is a `hidden beast` number, since 647 + 4 + 8 + 5 + 1 + 1 = 666.

It is not a de Polignac number, because 64748511 - 2¹⁴ = 64732127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64748501) 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, 18010 + ... + 21303.

It is an arithmetic number, because the mean of its divisors is an integer number (6093670).

Almost surely, 2^64748511 is an apocalyptic number.

64748511 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

64748511 is a deficient number, since it is larger than the sum of its proper divisors (32750209).

64748511 is a wasteful number, since it uses less digits than its factorization.

64748511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39383 (or 39377 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 64748511 is about 8046.6459472255. The cubic root of 64748511 is about 401.5533578069.

The spelling of 64748511 in words is "sixty-four million, seven hundred forty-eight thousand, five hundred eleven".