64770648367 has 16 divisors (see below), whose sum is σ = 68570959360. Its totient is φ = 61010433792.

The previous prime is 64770648361. The next prime is 64770648379. The reversal of 64770648367 is 76384607746.

64770648367 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64770648367 is a prime.

It is a super-3 number, since 3×64770648367³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64770648361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2476543 + ... + 2502559.

It is an arithmetic number, because the mean of its divisors is an integer number (4285684960).

Almost surely, 2^64770648367 is an apocalyptic number.

64770648367 is a deficient number, since it is larger than the sum of its proper divisors (3800310993).

64770648367 is a wasteful number, since it uses less digits than its factorization.

64770648367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26782.

The product of its (nonzero) digits is 28449792, while the sum is 58.

The spelling of 64770648367 in words is "sixty-four billion, seven hundred seventy million, six hundred forty-eight thousand, three hundred sixty-seven".