78502103423338 has 32 divisors (see below), whose sum is σ = 134641977845760. Its totient is φ = 33627026337840.

The previous prime is 78502103423333. The next prime is 78502103423369. The reversal of 78502103423338 is 83332430120587.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 78502103423291 and 78502103423300.

It is not an unprimeable number, because it can be changed into a prime (78502103423333) 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, 271791283 + ... + 272079961.

It is an arithmetic number, because the mean of its divisors is an integer number (4207561807680).

Almost surely, 2^{78502103423338} is an apocalyptic number.

78502103423338 is a deficient number, since it is larger than the sum of its proper divisors (56139874422422).

78502103423338 is a wasteful number, since it uses less digits than its factorization.

78502103423338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298282.

The product of its (nonzero) digits is 2903040, while the sum is 49.

The spelling of 78502103423338 in words is "seventy-eight trillion, five hundred two billion, one hundred three million, four hundred twenty-three thousand, three hundred thirty-eight".