63949294936 has 16 divisors (see below), whose sum is σ = 121092107040. Its totient is φ = 31658066400.

The previous prime is 63949294933. The next prime is 63949294943.

63949294936 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63949294931) 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, 39571776 + ... + 39573391.

It is an arithmetic number, because the mean of its divisors is an integer number (7568256690).

Almost surely, 2^63949294936 is an apocalyptic number.

It is an amenable number.

63949294936 is a deficient number, since it is larger than the sum of its proper divisors (57142812104).

63949294936 is a wasteful number, since it uses less digits than its factorization.

63949294936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79145274 (or 79145270 counting only the distinct ones).

The product of its digits is 68024448, while the sum is 64.

The spelling of 63949294936 in words is "sixty-three billion, nine hundred forty-nine million, two hundred ninety-four thousand, nine hundred thirty-six".