64246127947 has 8 divisors (see below), whose sum is σ = 64359051120. Its totient is φ = 64133261280.

The previous prime is 64246127941. The next prime is 64246128029. The reversal of 64246127947 is 74972164246.

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 64246127947 - 2⁷ = 64246127819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64246127894 and 64246127903.

It is not an unprimeable number, because it can be changed into a prime (64246127941) 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, 2712697 + ... + 2736277.

It is an arithmetic number, because the mean of its divisors is an integer number (8044881390).

Almost surely, 2^64246127947 is an apocalyptic number.

64246127947 is a deficient number, since it is larger than the sum of its proper divisors (112923173).

64246127947 is a wasteful number, since it uses less digits than its factorization.

64246127947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28253.

The product of its digits is 4064256, while the sum is 52.

The spelling of 64246127947 in words is "sixty-four billion, two hundred forty-six million, one hundred twenty-seven thousand, nine hundred forty-seven".