2071657573531 has 32 divisors (see below), whose sum is σ = 2588002099200. Its totient is φ = 1614608087040.

The previous prime is 2071657573523. The next prime is 2071657573543. The reversal of 2071657573531 is 1353757561702.

It is not a de Polignac number, because 2071657573531 - 2³ = 2071657573523 is a prime.

It is a super-2 number, since 2×2071657573531² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2071657573031) 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, 2764155 + ... + 3432763.

It is an arithmetic number, because the mean of its divisors is an integer number (80875065600).

Almost surely, 2^{2071657573531} is an apocalyptic number.

2071657573531 is a deficient number, since it is larger than the sum of its proper divisors (516344525669).

2071657573531 is a wasteful number, since it uses less digits than its factorization.

2071657573531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669139.

The product of its (nonzero) digits is 4630500, while the sum is 52.

The spelling of 2071657573531 in words is "two trillion, seventy-one billion, six hundred fifty-seven million, five hundred seventy-three thousand, five hundred thirty-one".