78021356152 has 16 divisors (see below), whose sum is σ = 146295604440. Its totient is φ = 39009194976.

The previous prime is 78021356143. The next prime is 78021356167. The reversal of 78021356152 is 25165312087.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56803 + ... + 399085.

Almost surely, 2^78021356152 is an apocalyptic number.

It is an amenable number.

78021356152 is a deficient number, since it is larger than the sum of its proper divisors (68274248288).

78021356152 is a wasteful number, since it uses less digits than its factorization.

78021356152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370782 (or 370778 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 78021356152 in words is "seventy-eight billion, twenty-one million, three hundred fifty-six thousand, one hundred fifty-two".