64238475077 has 8 divisors (see below), whose sum is σ = 73590619200. Its totient is φ = 54930135744.

The previous prime is 64238475053. The next prime is 64238475083. The reversal of 64238475077 is 77057483246.

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

It is not a de Polignac number, because 64238475077 - 2¹⁸ = 64238212933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64238475017) 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, 10948052 + ... + 10953917.

It is an arithmetic number, because the mean of its divisors is an integer number (9198827400).

Almost surely, 2^64238475077 is an apocalyptic number.

It is an amenable number.

64238475077 is a deficient number, since it is larger than the sum of its proper divisors (9352144123).

64238475077 is a wasteful number, since it uses less digits than its factorization.

64238475077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21902395.

The product of its (nonzero) digits is 7902720, while the sum is 53.

The spelling of 64238475077 in words is "sixty-four billion, two hundred thirty-eight million, four hundred seventy-five thousand, seventy-seven".