2047457191 has 16 divisors (see below), whose sum is σ = 2228121504. Its totient is φ = 1870193664.

The previous prime is 2047457183. The next prime is 2047457213. The reversal of 2047457191 is 1917547402.

It is a cyclic number.

It is not a de Polignac number, because 2047457191 - 2³ = 2047457183 is a prime.

It is a super-2 number, since 2×2047457191² = 8384161897955220962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2047457491) 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, 616351 + ... + 619663.

It is an arithmetic number, because the mean of its divisors is an integer number (139257594).

Almost surely, 2^2047457191 is an apocalyptic number.

2047457191 is a deficient number, since it is larger than the sum of its proper divisors (180664313).

2047457191 is a wasteful number, since it uses less digits than its factorization.

2047457191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3810.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 2047457191 is about 45248.8363496787. The cubic root of 2047457191 is about 1269.8086369243.

The spelling of 2047457191 in words is "two billion, forty-seven million, four hundred fifty-seven thousand, one hundred ninety-one".