7150721499 has 16 divisors (see below), whose sum is σ = 10613050240. Its totient is φ = 4758422760.

The previous prime is 7150721489. The next prime is 7150721519. The reversal of 7150721499 is 9941270517.

7150721499 is a `hidden beast` number, since 7 + 150 + 7 + 2 + 1 + 499 = 666.

It is not a de Polignac number, because 7150721499 - 2⁹ = 7150720987 is a prime.

It is a super-2 number, since 2×7150721499² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7150721449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227317 + ... + 256854.

It is an arithmetic number, because the mean of its divisors is an integer number (663315640).

Almost surely, 2^7150721499 is an apocalyptic number.

7150721499 is a deficient number, since it is larger than the sum of its proper divisors (3462328741).

7150721499 is a wasteful number, since it uses less digits than its factorization.

7150721499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484727 (or 484721 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 45.

The square root of 7150721499 is about 84561.9388318409. The cubic root of 7150721499 is about 1926.5633220863.

The spelling of 7150721499 in words is "seven billion, one hundred fifty million, seven hundred twenty-one thousand, four hundred ninety-nine".