64246442053 has 4 divisors (see below), whose sum is σ = 67627833760. Its totient is φ = 60865050348.

The previous prime is 64246442047. The next prime is 64246442059. The reversal of 64246442053 is 35024464246.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35024464246 = 2 ⋅17512232123.

It is an interprime number because it is at equal distance from previous prime (64246442047) and next prime (64246442059).

It is a cyclic number.

It is not a de Polignac number, because 64246442053 - 2³³ = 55656507461 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64246441997 and 64246442015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64246442059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1690695825 + ... + 1690695862.

It is an arithmetic number, because the mean of its divisors is an integer number (16906958440).

Almost surely, 2^64246442053 is an apocalyptic number.

It is an amenable number.

64246442053 is a deficient number, since it is larger than the sum of its proper divisors (3381391707).

64246442053 is a wasteful number, since it uses less digits than its factorization.

64246442053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3381391706.

The product of its (nonzero) digits is 552960, while the sum is 40.

The spelling of 64246442053 in words is "sixty-four billion, two hundred forty-six million, four hundred forty-two thousand, fifty-three".