78202173225008 has 80 divisors (see below), whose sum is σ = 178238743609344. Its totient is φ = 32543842625280.

The previous prime is 78202173224977. The next prime is 78202173225013. The reversal of 78202173225008 is 80052237120287.

It is a super-2 number, since 2×78202173225008² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57819803 + ... + 59156858.

Almost surely, 2^{78202173225008} is an apocalyptic number.

It is an amenable number.

78202173225008 is an abundant number, since it is smaller than the sum of its proper divisors (100036570384336).

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

78202173225008 is a wasteful number, since it uses less digits than its factorization.

78202173225008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116976850 (or 116976844 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 47.

The spelling of 78202173225008 in words is "seventy-eight trillion, two hundred two billion, one hundred seventy-three million, two hundred twenty-five thousand, eight".