63140604385 has 4 divisors (see below), whose sum is σ = 75768725268. Its totient is φ = 50512483504.

The previous prime is 63140604379. The next prime is 63140604389. The reversal of 63140604385 is 58340604136.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10119555216 + 53021049169 = 100596^2 + 230263^2 .

It is a cyclic number.

It is not a de Polignac number, because 63140604385 - 2³¹ = 60993120737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63140604389) 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, 6314060434 + ... + 6314060443.

It is an arithmetic number, because the mean of its divisors is an integer number (18942181317).

Almost surely, 2^63140604385 is an apocalyptic number.

It is an amenable number.

63140604385 is a deficient number, since it is larger than the sum of its proper divisors (12628120883).

63140604385 is a wasteful number, since it uses less digits than its factorization.

63140604385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12628120882.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 63140604385 in words is "sixty-three billion, one hundred forty million, six hundred four thousand, three hundred eighty-five".