7158481408 has 40 divisors (see below), whose sum is σ = 15403225068. Its totient is φ = 3303911424.

The previous prime is 7158481399. The next prime is 7158481441. The reversal of 7158481408 is 8041848517.

It can be written as a sum of positive squares in 2 ways, for example, as 5260310784 + 1898170624 = 72528^2 + 43568^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531091 + ... + 544402.

Almost surely, 2^7158481408 is an apocalyptic number.

It is an amenable number.

7158481408 is an abundant number, since it is smaller than the sum of its proper divisors (8244743660).

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

7158481408 is a wasteful number, since it uses less digits than its factorization.

7158481408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075524 (or 1075508 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 46.

The square root of 7158481408 is about 84607.8093795130. The cubic root of 7158481408 is about 1927.2599674743.

It can be divided in two parts, 7158 and 481408, that added together give a triangular number (488566 = T₉₈₈).

The spelling of 7158481408 in words is "seven billion, one hundred fifty-eight million, four hundred eighty-one thousand, four hundred eight".