64729022677 has 8 divisors (see below), whose sum is σ = 70721624160. Its totient is φ = 58754445360.

The previous prime is 64729022663. The next prime is 64729022689. The reversal of 64729022677 is 77622092746.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64729022677 - 2¹⁹ = 64728498389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64729022077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4498527 + ... + 4512892.

It is an arithmetic number, because the mean of its divisors is an integer number (8840203020).

Almost surely, 2^64729022677 is an apocalyptic number.

It is an amenable number.

64729022677 is a deficient number, since it is larger than the sum of its proper divisors (5992601483).

64729022677 is a wasteful number, since it uses less digits than its factorization.

64729022677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9012083.

The product of its (nonzero) digits is 3556224, while the sum is 52.

The spelling of 64729022677 in words is "sixty-four billion, seven hundred twenty-nine million, twenty-two thousand, six hundred seventy-seven".