64854295380503 has 4 divisors (see below), whose sum is σ = 64959068071560. Its totient is φ = 64749522689448.

The previous prime is 64854295380473. The next prime is 64854295380521. The reversal of 64854295380503 is 30508359245846.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64854295380503 - 2⁸ = 64854295380247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64854295380533) 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, 52386344600 + ... + 52386345837.

It is an arithmetic number, because the mean of its divisors is an integer number (16239767017890).

Almost surely, 2^{64854295380503} is an apocalyptic number.

64854295380503 is a deficient number, since it is larger than the sum of its proper divisors (104772691057).

64854295380503 is a wasteful number, since it uses less digits than its factorization.

64854295380503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104772691056.

The product of its (nonzero) digits is 124416000, while the sum is 62.

The spelling of 64854295380503 in words is "sixty-four trillion, eight hundred fifty-four billion, two hundred ninety-five million, three hundred eighty thousand, five hundred three".