7148996491 has 16 divisors (see below), whose sum is σ = 8844853248. Its totient is φ = 5626720800.

The previous prime is 7148996483. The next prime is 7148996537. The reversal of 7148996491 is 1946998417.

7148996491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 7148996491 - 2³ = 7148996483 is a prime.

It is a super-2 number, since 2×7148996491² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7148996191) 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, 188275 + ... + 223036.

It is an arithmetic number, because the mean of its divisors is an integer number (552803328).

Almost surely, 2^7148996491 is an apocalyptic number.

7148996491 is a deficient number, since it is larger than the sum of its proper divisors (1695856757).

7148996491 is a wasteful number, since it uses less digits than its factorization.

7148996491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411522.

The product of its digits is 3919104, while the sum is 58.

The square root of 7148996491 is about 84551.7385451062. The cubic root of 7148996491 is about 1926.4083911275.

The spelling of 7148996491 in words is "seven billion, one hundred forty-eight million, nine hundred ninety-six thousand, four hundred ninety-one".