2546121324261 has 16 divisors (see below), whose sum is σ = 3422071177280. Its totient is φ = 1683812983680.

The previous prime is 2546121324259. The next prime is 2546121324283. The reversal of 2546121324261 is 1624231216452.

It is not a de Polignac number, because 2546121324261 - 2¹ = 2546121324259 is a prime.

It is a super-2 number, since 2×2546121324261² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2546121324361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2011000 + ... + 3022641.

It is an arithmetic number, because the mean of its divisors is an integer number (213879448580).

Almost surely, 2^{2546121324261} is an apocalyptic number.

It is an amenable number.

2546121324261 is a deficient number, since it is larger than the sum of its proper divisors (875949853019).

2546121324261 is a wasteful number, since it uses less digits than its factorization.

2546121324261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5034996.

The product of its digits is 138240, while the sum is 39.

The spelling of 2546121324261 in words is "two trillion, five hundred forty-six billion, one hundred twenty-one million, three hundred twenty-four thousand, two hundred sixty-one".