63444753394 has 8 divisors (see below), whose sum is σ = 103818687408. Its totient is φ = 28838524260.

The previous prime is 63444753391. The next prime is 63444753409. The reversal of 63444753394 is 49335744436.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (63444753391) 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, 1441926192 + ... + 1441926235.

It is an arithmetic number, because the mean of its divisors is an integer number (12977335926).

Almost surely, 2^63444753394 is an apocalyptic number.

63444753394 is a deficient number, since it is larger than the sum of its proper divisors (40373934014).

63444753394 is a wasteful number, since it uses less digits than its factorization.

63444753394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2883852440.

The product of its digits is 13063680, while the sum is 52.

The spelling of 63444753394 in words is "sixty-three billion, four hundred forty-four million, seven hundred fifty-three thousand, three hundred ninety-four".