78373535028 has 24 divisors (see below), whose sum is σ = 182876152032. Its totient is φ = 26123858784.

The previous prime is 78373535027. The next prime is 78373535041. The reversal of 78373535028 is 82053537387.

It is a super-2 number, since 2×78373535028² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78373535027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 796351 + ... + 889337.

It is an arithmetic number, because the mean of its divisors is an integer number (7619839668).

Almost surely, 2^78373535028 is an apocalyptic number.

It is an amenable number.

78373535028 is an abundant number, since it is smaller than the sum of its proper divisors (104502617004).

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

78373535028 is a wasteful number, since it uses less digits than its factorization.

78373535028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163231 (or 163229 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 51.

The spelling of 78373535028 in words is "seventy-eight billion, three hundred seventy-three million, five hundred thirty-five thousand, twenty-eight".