2661263252 has 12 divisors (see below), whose sum is σ = 4657869216. Its totient is φ = 1330443480.

The previous prime is 2661263237. The next prime is 2661263299. The reversal of 2661263252 is 2523621662.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 12374 + ... + 73997.

It is an arithmetic number, because the mean of its divisors is an integer number (388155768).

Almost surely, 2^2661263252 is an apocalyptic number.

It is an amenable number.

2661263252 is a deficient number, since it is larger than the sum of its proper divisors (1996605964).

2661263252 is a wasteful number, since it uses less digits than its factorization.

2661263252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94078 (or 94076 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

The square root of 2661263252 is about 51587.4330820986. The cubic root of 2661263252 is about 1385.7852857436.

The spelling of 2661263252 in words is "two billion, six hundred sixty-one million, two hundred sixty-three thousand, two hundred fifty-two".