63799197696 has 480 divisors, whose sum is σ = 210153836970. Its totient is φ = 19173998592.

The previous prime is 63799197689. The next prime is 63799197719. The reversal of 63799197696 is 69679199736.

63799197696 is a `hidden beast` number, since 6 + 379 + 9 + 197 + 69 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 61345382400 + 2453815296 = 247680^2 + 49536^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1483702251 + ... + 1483702293.

Almost surely, 2^63799197696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63799197696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105076918485).

63799197696 is an abundant number, since it is smaller than the sum of its proper divisors (146354639274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63799197696 is an frugal number, since it uses more digits than its factorization.

63799197696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 61 counting only the distinct ones).

The product of its digits is 208324872, while the sum is 72.

The spelling of 63799197696 in words is "sixty-three billion, seven hundred ninety-nine million, one hundred ninety-seven thousand, six hundred ninety-six".