7149487078 has 16 divisors (see below), whose sum is σ = 10761454080. Its totient is φ = 3562352136.

The previous prime is 7149487057. The next prime is 7149487087. The reversal of 7149487078 is 8707849417.

It is a super-2 number, since 2×7149487078² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1123975 + ... + 1130317.

It is an arithmetic number, because the mean of its divisors is an integer number (672590880).

Almost surely, 2^7149487078 is an apocalyptic number.

7149487078 is a deficient number, since it is larger than the sum of its proper divisors (3611967002).

7149487078 is a wasteful number, since it uses less digits than its factorization.

7149487078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8211.

The product of its (nonzero) digits is 3161088, while the sum is 55.

The square root of 7149487078 is about 84554.6396006748. The cubic root of 7149487078 is about 1926.4524555542.

The spelling of 7149487078 in words is "seven billion, one hundred forty-nine million, four hundred eighty-seven thousand, seventy-eight".