78484250272 has 12 divisors (see below), whose sum is σ = 154515867786. Its totient is φ = 39242125120.

The previous prime is 78484250267. The next prime is 78484250293. The reversal of 78484250272 is 27205248487.

It can be written as a sum of positive squares in only one way, i.e., 55223120016 + 23261130256 = 234996^2 + 152516^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1226316379 + ... + 1226316442.

Almost surely, 2^78484250272 is an apocalyptic number.

It is an amenable number.

78484250272 is a deficient number, since it is larger than the sum of its proper divisors (76031617514).

78484250272 is a wasteful number, since it uses less digits than its factorization.

78484250272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452632831 (or 2452632823 counting only the distinct ones).

The product of its (nonzero) digits is 2007040, while the sum is 49.

The spelling of 78484250272 in words is "seventy-eight billion, four hundred eighty-four million, two hundred fifty thousand, two hundred seventy-two".