78993139482 has 48 divisors (see below), whose sum is σ = 176588605440. Its totient is φ = 25507194336.

The previous prime is 78993139457. The next prime is 78993139487. The reversal of 78993139482 is 28493139987.

78993139482 is a `hidden beast` number, since 7 + 8 + 99 + 31 + 39 + 482 = 666.

It is a super-3 number, since 3×78993139482³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (78993139487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 448698 + ... + 599429.

It is an arithmetic number, because the mean of its divisors is an integer number (3678929280).

Almost surely, 2^78993139482 is an apocalyptic number.

78993139482 is an abundant number, since it is smaller than the sum of its proper divisors (97595465958).

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

78993139482 is a wasteful number, since it uses less digits than its factorization.

78993139482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048267 (or 1048264 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 63.

The spelling of 78993139482 in words is "seventy-eight billion, nine hundred ninety-three million, one hundred thirty-nine thousand, four hundred eighty-two".