78532883331520 has 56 divisors (see below), whose sum is σ = 187022276037504. Its totient is φ = 31410491268096.

The previous prime is 78532883331509. The next prime is 78532883331563. The reversal of 78532883331520 is 2513338823587.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6614547 + ... + 14171026.

Almost surely, 2^{78532883331520} is an apocalyptic number.

It is an amenable number.

78532883331520 is an abundant number, since it is smaller than the sum of its proper divisors (108489392705984).

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

78532883331520 is a wasteful number, since it uses less digits than its factorization.

78532883331520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20797397 (or 20797387 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 58.

The spelling of 78532883331520 in words is "seventy-eight trillion, five hundred thirty-two billion, eight hundred eighty-three million, three hundred thirty-one thousand, five hundred twenty".