64791210547 has 12 divisors (see below), whose sum is σ = 79336177320. Its totient is φ = 52612410816.

The previous prime is 64791210529. The next prime is 64791210571. The reversal of 64791210547 is 74501219746.

It is not a de Polignac number, because 64791210547 - 2¹⁵ = 64791177779 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64791210497 and 64791210506.

It is not an unprimeable number, because it can be changed into a prime (64791210527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34795638 + ... + 34797499.

It is an arithmetic number, because the mean of its divisors is an integer number (6611348110).

Almost surely, 2^64791210547 is an apocalyptic number.

64791210547 is a deficient number, since it is larger than the sum of its proper divisors (14544966773).

64791210547 is a wasteful number, since it uses less digits than its factorization.

64791210547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69593170 (or 69593163 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 64791210547 in words is "sixty-four billion, seven hundred ninety-one million, two hundred ten thousand, five hundred forty-seven".