63519887340 has 960 divisors, whose sum is σ = 255449779200. Its totient is φ = 12859140096.

The previous prime is 63519887329. The next prime is 63519887351. The reversal of 63519887340 is 4378891536.

63519887340 is a `hidden beast` number, since 6 + 3 + 519 + 8 + 87 + 3 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (63519887329) and next prime (63519887351).

It is a Harshad number since it is a multiple of its sum of digits (54).

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 in 319 ways as a sum of consecutive naturals, for example, 582751206 + ... + 582751314.

It is an arithmetic number, because the mean of its divisors is an integer number (266093520).

Almost surely, 2^63519887340 is an apocalyptic number.

63519887340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63519887340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127724889600).

63519887340 is an abundant number, since it is smaller than the sum of its proper divisors (191929891860).

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

63519887340 is a wasteful number, since it uses less digits than its factorization.

63519887340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 63519887340 in words is "sixty-three billion, five hundred nineteen million, eight hundred eighty-seven thousand, three hundred forty".