2666042631 has 24 divisors (see below), whose sum is σ = 4592440320. Its totient is φ = 1457215056.

The previous prime is 2666042581. The next prime is 2666042651. The reversal of 2666042631 is 1362406662.

2666042631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2666042631 - 2³¹ = 518558983 is a prime.

It is a super-2 number, since 2×2666042631² = 14215566620618804322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666042651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 918511 + ... + 921408.

It is an arithmetic number, because the mean of its divisors is an integer number (191351680).

Almost surely, 2^2666042631 is an apocalyptic number.

2666042631 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2666042631 is a deficient number, since it is larger than the sum of its proper divisors (1926397689).

2666042631 is a wasteful number, since it uses less digits than its factorization.

2666042631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839955 (or 1839952 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 2666042631 is about 51633.7353965409. The cubic root of 2666042631 is about 1386.6143697211.

The spelling of 2666042631 in words is "two billion, six hundred sixty-six million, forty-two thousand, six hundred thirty-one".