7149936898 has 8 divisors (see below), whose sum is σ = 11549898108. Its totient is φ = 3299970864.

The previous prime is 7149936887. The next prime is 7149936907. The reversal of 7149936898 is 8986399417.

It can be written as a sum of positive squares in 2 ways, for example, as 7108681969 + 41254929 = 84313^2 + 6423^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×7149936898² (a number of 21 digits) contains 22 as substring.

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, 137498761 + ... + 137498812.

Almost surely, 2^7149936898 is an apocalyptic number.

7149936898 is a deficient number, since it is larger than the sum of its proper divisors (4399961210).

7149936898 is a wasteful number, since it uses less digits than its factorization.

7149936898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274997588.

The product of its digits is 23514624, while the sum is 64.

The square root of 7149936898 is about 84557.2994956674. The cubic root of 7149936898 is about 1926.4928565257.

The spelling of 7149936898 in words is "seven billion, one hundred forty-nine million, nine hundred thirty-six thousand, eight hundred ninety-eight".