78106038528 has 144 divisors (see below), whose sum is σ = 240581089280. Its totient is φ = 22033410048.

The previous prime is 78106038503. The next prime is 78106038533. The reversal of 78106038528 is 82583060187.

It is a super-2 number, since 2×78106038528² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332751 + ... + 516657.

Almost surely, 2^78106038528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78106038528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120290544640).

78106038528 is an abundant number, since it is smaller than the sum of its proper divisors (162475050752).

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

78106038528 is a wasteful number, since it uses less digits than its factorization.

78106038528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184012 (or 183998 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 78106038528 in words is "seventy-eight billion, one hundred six million, thirty-eight thousand, five hundred twenty-eight".