3261402653 has 8 divisors (see below), whose sum is σ = 3282299328. Its totient is φ = 3240572544.

The previous prime is 3261402607. The next prime is 3261402659. The reversal of 3261402653 is 3562041623.

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

It is a cyclic number.

It is not a de Polignac number, because 3261402653 - 2¹⁰ = 3261401629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3261402659) 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, 83576 + ... + 116222.

It is an arithmetic number, because the mean of its divisors is an integer number (410287416).

Almost surely, 2^3261402653 is an apocalyptic number.

It is an amenable number.

3261402653 is a deficient number, since it is larger than the sum of its proper divisors (20896675).

3261402653 is a wasteful number, since it uses less digits than its factorization.

3261402653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33283.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 3261402653 is about 57108.6915714237. The cubic root of 3261402653 is about 1482.9783360156.

The spelling of 3261402653 in words is "three billion, two hundred sixty-one million, four hundred two thousand, six hundred fifty-three".