63357779494 has 4 divisors (see below), whose sum is σ = 95036669244. Its totient is φ = 31678889746.

The previous prime is 63357779479. The next prime is 63357779533. The reversal of 63357779494 is 49497775336.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 15839444872 + ... + 15839444875.

It is an arithmetic number, because the mean of its divisors is an integer number (23759167311).

Almost surely, 2^63357779494 is an apocalyptic number.

63357779494 is a deficient number, since it is larger than the sum of its proper divisors (31678889750).

63357779494 is a wasteful number, since it uses less digits than its factorization.

63357779494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31678889749.

The product of its digits is 120022560, while the sum is 64.

The spelling of 63357779494 in words is "sixty-three billion, three hundred fifty-seven million, seven hundred seventy-nine thousand, four hundred ninety-four".