64284776823 has 32 divisors (see below), whose sum is σ = 87886374912. Its totient is φ = 41777568000.

The previous prime is 64284776821. The next prime is 64284776891. The reversal of 64284776823 is 32867748246.

It is not a de Polignac number, because 64284776823 - 2¹ = 64284776821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64284776821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62962053 + ... + 62963073.

It is an arithmetic number, because the mean of its divisors is an integer number (2746449216).

Almost surely, 2^64284776823 is an apocalyptic number.

64284776823 is a deficient number, since it is larger than the sum of its proper divisors (23601598089).

64284776823 is a wasteful number, since it uses less digits than its factorization.

64284776823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415.

The product of its digits is 21676032, while the sum is 57.

The spelling of 64284776823 in words is "sixty-four billion, two hundred eighty-four million, seven hundred seventy-six thousand, eight hundred twenty-three".