68632353540 has 48 divisors (see below), whose sum is σ = 213522879360. Its totient is φ = 18301960800.

The previous prime is 68632353529. The next prime is 68632353547. The reversal of 68632353540 is 4535323686.

68632353540 is a `hidden beast` number, since 6 + 8 + 63 + 235 + 354 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (68632353547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63547936 + ... + 63549015.

It is an arithmetic number, because the mean of its divisors is an integer number (4448393320).

Almost surely, 2^68632353540 is an apocalyptic number.

68632353540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68632353540 is an abundant number, since it is smaller than the sum of its proper divisors (144890525820).

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

68632353540 is a wasteful number, since it uses less digits than its factorization.

68632353540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127096969 (or 127096961 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 45.

The spelling of 68632353540 in words is "sixty-eight billion, six hundred thirty-two million, three hundred fifty-three thousand, five hundred forty".