3280401684261 has 48 divisors (see below), whose sum is σ = 5150850344640. Its totient is φ = 1999772686080.

The previous prime is 3280401684227. The next prime is 3280401684281. The reversal of 3280401684261 is 1624861040823.

3280401684261 is a `hidden beast` number, since 3 + 28 + 0 + 40 + 168 + 426 + 1 = 666.

It is not a de Polignac number, because 3280401684261 - 2¹⁸ = 3280401422117 is a prime.

It is a super-2 number, since 2×3280401684261² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3280401684281) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8532990 + ... + 8909136.

It is an arithmetic number, because the mean of its divisors is an integer number (107309382180).

Almost surely, 2^{3280401684261} is an apocalyptic number.

It is an amenable number.

3280401684261 is a deficient number, since it is larger than the sum of its proper divisors (1870448660379).

3280401684261 is a wasteful number, since it uses less digits than its factorization.

3280401684261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376866 (or 376863 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 3280401684261 in words is "three trillion, two hundred eighty billion, four hundred one million, six hundred eighty-four thousand, two hundred sixty-one".