64827072846 has 32 divisors (see below), whose sum is σ = 144110858400. Its totient is φ = 21601419840.

The previous prime is 64827072803. The next prime is 64827072851.

It is a happy number.

64827072846 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 64827072792 and 64827072801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55311 + ... + 364298.

It is an arithmetic number, because the mean of its divisors is an integer number (4503464325).

Almost surely, 2^64827072846 is an apocalyptic number.

64827072846 is an abundant number, since it is smaller than the sum of its proper divisors (79283785554).

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

64827072846 is a wasteful number, since it uses less digits than its factorization.

64827072846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422481 (or 422475 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 54.

The spelling of 64827072846 in words is "sixty-four billion, eight hundred twenty-seven million, seventy-two thousand, eight hundred forty-six".