68630276880 has 240 divisors, whose sum is σ = 252718449984. Its totient is φ = 16552811520.

The previous prime is 68630276873. The next prime is 68630276881. The reversal of 68630276880 is 8867203686.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×68630276880² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68630276881) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1538247 + ... + 1582233.

Almost surely, 2^68630276880 is an apocalyptic number.

68630276880 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 68630276880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126359224992).

68630276880 is an abundant number, since it is smaller than the sum of its proper divisors (184088173104).

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

68630276880 is a wasteful number, since it uses less digits than its factorization.

68630276880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44214 (or 44205 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 68630276880 in words is "sixty-eight billion, six hundred thirty million, two hundred seventy-six thousand, eight hundred eighty".