2531272068 has 36 divisors (see below), whose sum is σ = 6890686348. Its totient is φ = 778852800.

The previous prime is 2531272067. The next prime is 2531272129. The reversal of 2531272068 is 8602721352.

It can be written as a sum of positive squares in 2 ways, for example, as 176305284 + 2354966784 = 13278^2 + 48528^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2531272067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2703883 + ... + 2704818.

Almost surely, 2^2531272068 is an apocalyptic number.

It is an amenable number.

2531272068 is an abundant number, since it is smaller than the sum of its proper divisors (4359414280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2531272068 is a wasteful number, since it uses less digits than its factorization.

2531272068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5408724 (or 5408719 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 2531272068 is about 50311.7488068145. The cubic root of 2531272068 is about 1362.8444051279.

The spelling of 2531272068 in words is "two billion, five hundred thirty-one million, two hundred seventy-two thousand, sixty-eight".