64387562853 has 4 divisors (see below), whose sum is σ = 85850083808. Its totient is φ = 42925041900.

The previous prime is 64387562791. The next prime is 64387562861. The reversal of 64387562853 is 35826578346.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 64387562853 - 2⁹ = 64387562341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64387562793 and 64387562802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64387562873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10731260473 + ... + 10731260478.

It is an arithmetic number, because the mean of its divisors is an integer number (21462520952).

Almost surely, 2^64387562853 is an apocalyptic number.

It is an amenable number.

64387562853 is a deficient number, since it is larger than the sum of its proper divisors (21462520955).

64387562853 is a wasteful number, since it uses less digits than its factorization.

64387562853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21462520954.

The product of its digits is 29030400, while the sum is 57.

The spelling of 64387562853 in words is "sixty-four billion, three hundred eighty-seven million, five hundred sixty-two thousand, eight hundred fifty-three".