78502354036242 has 16 divisors (see below), whose sum is σ = 157005436436640. Its totient is φ = 26167329951392.

The previous prime is 78502354036207. The next prime is 78502354036243. The reversal of 78502354036242 is 24263045320587.

It is not an unprimeable number, because it can be changed into a prime (78502354036243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28942368 + ... + 31538315.

It is an arithmetic number, because the mean of its divisors is an integer number (9812839777290).

Almost surely, 2^{78502354036242} is an apocalyptic number.

78502354036242 is an abundant number, since it is smaller than the sum of its proper divisors (78503082400398).

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

78502354036242 is a wasteful number, since it uses less digits than its factorization.

78502354036242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60697017.

The product of its (nonzero) digits is 9676800, while the sum is 51.

The spelling of 78502354036242 in words is "seventy-eight trillion, five hundred two billion, three hundred fifty-four million, thirty-six thousand, two hundred forty-two".