68769221040 has 120 divisors (see below), whose sum is σ = 248715383280. Its totient is φ = 16927805952.

The previous prime is 68769221033. The next prime is 68769221047. The reversal of 68769221040 is 4012296786.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68769221033) and next prime (68769221047).

It is a tau number, because it is divible by the number of its divisors (120).

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 (68769221047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3664210 + ... + 3682929.

It is an arithmetic number, because the mean of its divisors is an integer number (2072628194).

Almost surely, 2^68769221040 is an apocalyptic number.

68769221040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68769221040 is an abundant number, since it is smaller than the sum of its proper divisors (179946162240).

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

68769221040 is a wasteful number, since it uses less digits than its factorization.

68769221040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7347171 (or 7347162 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 68769221040 in words is "sixty-eight billion, seven hundred sixty-nine million, two hundred twenty-one thousand, forty".