7049981178 has 16 divisors (see below), whose sum is σ = 15666624960. Its totient is φ = 2349993708.

The previous prime is 7049981177. The next prime is 7049981203. The reversal of 7049981178 is 8711899407.

7049981178 is a `hidden beast` number, since 7 + 0 + 499 + 81 + 1 + 78 = 666.

It is a super-2 number, since 2×7049981178² = 99404469220308535368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 130555207 = 7049981178 / (7 + 0 + 4 + 9 + 9 + 8 + 1 + 1 + 7 + 8).

It is not an unprimeable number, because it can be changed into a prime (7049981173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65277550 + ... + 65277657.

It is an arithmetic number, because the mean of its divisors is an integer number (979164060).

Almost surely, 2^7049981178 is an apocalyptic number.

7049981178 is an abundant number, since it is smaller than the sum of its proper divisors (8616643782).

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

7049981178 is a wasteful number, since it uses less digits than its factorization.

7049981178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130555218 (or 130555212 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 54.

The square root of 7049981178 is about 83964.1660352796. The cubic root of 7049981178 is about 1917.4732729563.

The spelling of 7049981178 in words is "seven billion, forty-nine million, nine hundred eighty-one thousand, one hundred seventy-eight".