78267065500 has 48 divisors (see below), whose sum is σ = 184084153344. Its totient is φ = 28898606400.

The previous prime is 78267065477. The next prime is 78267065507. The reversal of 78267065500 is 556076287.

It is a super-2 number, since 2×78267065500² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78267065507) 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, 6014044 + ... + 6027043.

It is an arithmetic number, because the mean of its divisors is an integer number (3835086528).

Almost surely, 2^78267065500 is an apocalyptic number.

It is an amenable number.

78267065500 is an abundant number, since it is smaller than the sum of its proper divisors (105817087844).

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

78267065500 is a wasteful number, since it uses less digits than its factorization.

78267065500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12041119 (or 12041107 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 78267065500 in words is "seventy-eight billion, two hundred sixty-seven million, sixty-five thousand, five hundred".