78524648038 has 16 divisors (see below), whose sum is σ = 121903753104. Its totient is φ = 37909808640.

The previous prime is 78524648029. The next prime is 78524648039. The reversal of 78524648038 is 83084642587.

It is a super-2 number, since 2×78524648038² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78524648038.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78524648039) 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, 4928220 + ... + 4944127.

It is an arithmetic number, because the mean of its divisors is an integer number (7618984569).

Almost surely, 2^78524648038 is an apocalyptic number.

78524648038 is a deficient number, since it is larger than the sum of its proper divisors (43379105066).

78524648038 is a wasteful number, since it uses less digits than its factorization.

78524648038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9872487.

The product of its (nonzero) digits is 10321920, while the sum is 55.

The spelling of 78524648038 in words is "seventy-eight billion, five hundred twenty-four million, six hundred forty-eight thousand, thirty-eight".