64626541363 has 4 divisors (see below), whose sum is σ = 64633516960. Its totient is φ = 64619565768.

The previous prime is 64626541361. The next prime is 64626541391. The reversal of 64626541363 is 36314562646.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36314562646 = 2 ⋅18157281323.

It is a cyclic number.

It is not a de Polignac number, because 64626541363 - 2¹ = 64626541361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64626541361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3473883 + ... + 3492436.

It is an arithmetic number, because the mean of its divisors is an integer number (16158379240).

Almost surely, 2^64626541363 is an apocalyptic number.

64626541363 is a deficient number, since it is larger than the sum of its proper divisors (6975597).

64626541363 is an equidigital number, since it uses as much as digits as its factorization.

64626541363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6975596.

The product of its digits is 1866240, while the sum is 46.

The spelling of 64626541363 in words is "sixty-four billion, six hundred twenty-six million, five hundred forty-one thousand, three hundred sixty-three".