78946353020 has 24 divisors (see below), whose sum is σ = 168597298800. Its totient is φ = 31043311232.

The previous prime is 78946353011. The next prime is 78946353037. The reversal of 78946353020 is 2035364987.

It is a happy number.

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, 33450665 + ... + 33453024.

It is an arithmetic number, because the mean of its divisors is an integer number (7024887450).

Almost surely, 2^78946353020 is an apocalyptic number.

It is an amenable number.

78946353020 is an abundant number, since it is smaller than the sum of its proper divisors (89650945780).

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

78946353020 is a wasteful number, since it uses less digits than its factorization.

78946353020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66903757 (or 66903755 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 78946353020 in words is "seventy-eight billion, nine hundred forty-six million, three hundred fifty-three thousand, twenty".