7149107847 has 32 divisors (see below), whose sum is σ = 11195712000. Its totient is φ = 3972163968.

The previous prime is 7149107813. The next prime is 7149107851. The reversal of 7149107847 is 7487019417.

It is a happy number.

It is not a de Polignac number, because 7149107847 - 2¹⁵ = 7149075079 is a prime.

It is a super-2 number, since 2×7149107847² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7149107796 and 7149107805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7149107047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2165404 + ... + 2168702.

It is an arithmetic number, because the mean of its divisors is an integer number (349866000).

Almost surely, 2^7149107847 is an apocalyptic number.

7149107847 is a deficient number, since it is larger than the sum of its proper divisors (4046604153).

7149107847 is a wasteful number, since it uses less digits than its factorization.

7149107847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6135.

The product of its (nonzero) digits is 395136, while the sum is 48.

The square root of 7149107847 is about 84552.3970505863. The cubic root of 7149107847 is about 1926.4183932781.

The spelling of 7149107847 in words is "seven billion, one hundred forty-nine million, one hundred seven thousand, eight hundred forty-seven".