78531853326580 has 48 divisors (see below), whose sum is σ = 174837786149376. Its totient is φ = 29577820947840.

The previous prime is 78531853326571. The next prime is 78531853326593. The reversal of 78531853326580 is 8562335813587.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1711656514 + ... + 1711702393.

It is an arithmetic number, because the mean of its divisors is an integer number (3642453878112).

Almost surely, 2^{78531853326580} is an apocalyptic number.

It is an amenable number.

78531853326580 is an abundant number, since it is smaller than the sum of its proper divisors (96305932822796).

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

78531853326580 is a wasteful number, since it uses less digits than its factorization.

78531853326580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3423358984 (or 3423358982 counting only the distinct ones).

The product of its (nonzero) digits is 145152000, while the sum is 64.

The spelling of 78531853326580 in words is "seventy-eight trillion, five hundred thirty-one billion, eight hundred fifty-three million, three hundred twenty-six thousand, five hundred eighty".