2661267762 has 48 divisors (see below), whose sum is σ = 6022980288. Its totient is φ = 847645920.

The previous prime is 2661267743. The next prime is 2661267767. The reversal of 2661267762 is 2677621662.

2661267762 is a `hidden beast` number, since 26 + 612 + 6 + 7 + 7 + 6 + 2 = 666.

It is a super-2 number, since 2×2661267762² = 14164692202120977288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2661267767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 486213 + ... + 491655.

It is an arithmetic number, because the mean of its divisors is an integer number (125478756).

Almost surely, 2^2661267762 is an apocalyptic number.

2661267762 is an abundant number, since it is smaller than the sum of its proper divisors (3361712526).

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

2661267762 is a wasteful number, since it uses less digits than its factorization.

2661267762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6655 (or 6652 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 2661267762 is about 51587.4767942763. The cubic root of 2661267762 is about 1385.7860685658.

It can be divided in two parts, 266 and 1267762, that added together give a triangular number (1268028 = T₁₅₉₂).

The spelling of 2661267762 in words is "two billion, six hundred sixty-one million, two hundred sixty-seven thousand, seven hundred sixty-two".