3261253003961 has 8 divisors (see below), whose sum is σ = 3302107404960. Its totient is φ = 3220435798272.

The previous prime is 3261253003901. The next prime is 3261253003979. The reversal of 3261253003961 is 1693003521623.

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 3261253003961 - 2²² = 3261248809657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3261253003901) 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, 9122351 + ... + 9473108.

It is an arithmetic number, because the mean of its divisors is an integer number (412763425620).

Almost surely, 2^{3261253003961} is an apocalyptic number.

It is an amenable number.

3261253003961 is a deficient number, since it is larger than the sum of its proper divisors (40854400999).

3261253003961 is a wasteful number, since it uses less digits than its factorization.

3261253003961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18597655.

The product of its (nonzero) digits is 174960, while the sum is 41.

The spelling of 3261253003961 in words is "three trillion, two hundred sixty-one billion, two hundred fifty-three million, three thousand, nine hundred sixty-one".