64228742415 has 12 divisors (see below), whose sum is σ = 111329820264. Its totient is φ = 34255329264.

The previous prime is 64228742387. The next prime is 64228742477. The reversal of 64228742415 is 51424782246.

64228742415 is a `hidden beast` number, since 6 + 4 + 228 + 7 + 4 + 2 + 415 = 666.

It is not a de Polignac number, because 64228742415 - 2¹⁰ = 64228741391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1427305387 = 64228742415 / (6 + 4 + 2 + 2 + 8 + 7 + 4 + 2 + 4 + 1 + 5).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 713652649 + ... + 713652738.

It is an arithmetic number, because the mean of its divisors is an integer number (9277485022).

Almost surely, 2^64228742415 is an apocalyptic number.

64228742415 is a deficient number, since it is larger than the sum of its proper divisors (47101077849).

64228742415 is a wasteful number, since it uses less digits than its factorization.

64228742415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427305398 (or 1427305395 counting only the distinct ones).

The product of its digits is 860160, while the sum is 45.

The spelling of 64228742415 in words is "sixty-four billion, two hundred twenty-eight million, seven hundred forty-two thousand, four hundred fifteen".