78730071500 has 48 divisors (see below), whose sum is σ = 172810747200. Its totient is φ = 31333737600.

The previous prime is 78730071481. The next prime is 78730071503. The reversal of 78730071500 is 517003787.

It is a super-3 number, since 3×78730071500³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (78730071503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296129 + ... + 495128.

It is an arithmetic number, because the mean of its divisors is an integer number (3600223900).

Almost surely, 2^78730071500 is an apocalyptic number.

It is an amenable number.

78730071500 is an abundant number, since it is smaller than the sum of its proper divisors (94080675700).

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

78730071500 is a wasteful number, since it uses less digits than its factorization.

78730071500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791475 (or 791463 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 38.

The spelling of 78730071500 in words is "seventy-eight billion, seven hundred thirty million, seventy-one thousand, five hundred".