78152278628435 has 24 divisors (see below), whose sum is σ = 103084201780560. Its totient is φ = 56837634645440.

The previous prime is 78152278628401. The next prime is 78152278628447. The reversal of 78152278628435 is 53482687225187.

It is not a de Polignac number, because 78152278628435 - 2¹⁸ = 78152278366291 is a prime.

It is a super-2 number, since 2×78152278628435² (a number of 29 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 112815701 + ... + 113506329.

It is an arithmetic number, because the mean of its divisors is an integer number (4295175074190).

Almost surely, 2^{78152278628435} is an apocalyptic number.

78152278628435 is a deficient number, since it is larger than the sum of its proper divisors (24931923152125).

78152278628435 is a wasteful number, since it uses less digits than its factorization.

78152278628435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877699 (or 877688 counting only the distinct ones).

The product of its digits is 361267200, while the sum is 68.

The spelling of 78152278628435 in words is "seventy-eight trillion, one hundred fifty-two billion, two hundred seventy-eight million, six hundred twenty-eight thousand, four hundred thirty-five".