78631029020 has 24 divisors (see below), whose sum is σ = 165137272944. Its totient is φ = 31450104576.

The previous prime is 78631029011. The next prime is 78631029073. The reversal of 78631029020 is 2092013687.

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, 149924 + ... + 423956.

It is an arithmetic number, because the mean of its divisors is an integer number (6880719706).

Almost surely, 2^78631029020 is an apocalyptic number.

It is an amenable number.

78631029020 is an abundant number, since it is smaller than the sum of its proper divisors (86506243924).

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

78631029020 is a wasteful number, since it uses less digits than its factorization.

78631029020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288389 (or 288387 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 78631029020 in words is "seventy-eight billion, six hundred thirty-one million, twenty-nine thousand, twenty".