7149611858 has 16 divisors (see below), whose sum is σ = 10966475520. Its totient is φ = 3494790000.

The previous prime is 7149611837. The next prime is 7149611881. The reversal of 7149611858 is 8581169417.

It is a happy number.

It is a super-2 number, since 2×7149611858² (a number of 21 digits) contains 22 as substring.

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, 146018 + ... + 188733.

It is an arithmetic number, because the mean of its divisors is an integer number (685404720).

Almost surely, 2^7149611858 is an apocalyptic number.

7149611858 is a deficient number, since it is larger than the sum of its proper divisors (3816863662).

7149611858 is a wasteful number, since it uses less digits than its factorization.

7149611858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334993.

The product of its digits is 483840, while the sum is 50.

The square root of 7149611858 is about 84555.3774635298. The cubic root of 7149611858 is about 1926.4636629474.

The spelling of 7149611858 in words is "seven billion, one hundred forty-nine million, six hundred eleven thousand, eight hundred fifty-eight".