68403465900 has 648 divisors, whose sum is σ = 281242363920. Its totient is φ = 14210380800.

The previous prime is 68403465899. The next prime is 68403465901. The reversal of 68403465900 is 956430486.

68403465900 is a `hidden beast` number, since 68 + 40 + 3 + 465 + 90 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (68403465899) and next prime (68403465901).

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 (68403465901) by changing a digit.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 16006164 + ... + 16010436.

Almost surely, 2^68403465900 is an apocalyptic number.

68403465900 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 68403465900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140621181960).

68403465900 is an abundant number, since it is smaller than the sum of its proper divisors (212838898020).

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

68403465900 is a wasteful number, since it uses less digits than its factorization.

68403465900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4332 (or 4301 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 68403465900 in words is "sixty-eight billion, four hundred three million, four hundred sixty-five thousand, nine hundred".