2111552827631 has 8 divisors (see below), whose sum is σ = 2393663124720. Its totient is φ = 1846540124352.

The previous prime is 2111552827619. The next prime is 2111552827679. The reversal of 2111552827631 is 1367282551112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111552827631 is a prime.

It is a super-2 number, since 2×2111552827631² (a number of 25 digits) 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 (2111552827031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4274398190 + ... + 4274398683.

It is an arithmetic number, because the mean of its divisors is an integer number (299207890590).

Almost surely, 2^{2111552827631} is an apocalyptic number.

2111552827631 is a deficient number, since it is larger than the sum of its proper divisors (282110297089).

2111552827631 is a wasteful number, since it uses less digits than its factorization.

2111552827631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8548796905.

The product of its digits is 201600, while the sum is 44.

The spelling of 2111552827631 in words is "two trillion, one hundred eleven billion, five hundred fifty-two million, eight hundred twenty-seven thousand, six hundred thirty-one".