2617754812421 has 16 divisors (see below), whose sum is σ = 3126837964800. Its totient is φ = 2142766417968.

The previous prime is 2617754812403. The next prime is 2617754812423. The reversal of 2617754812421 is 1242184577162.

It is a cyclic number.

It is not a de Polignac number, because 2617754812421 - 2⁶ = 2617754812357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2617754812421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2617754812423) 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, 13033901 + ... + 13233218.

It is an arithmetic number, because the mean of its divisors is an integer number (195427372800).

Almost surely, 2^{2617754812421} is an apocalyptic number.

It is an amenable number.

2617754812421 is a deficient number, since it is larger than the sum of its proper divisors (509083152379).

2617754812421 is a wasteful number, since it uses less digits than its factorization.

2617754812421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26267768.

The product of its digits is 1505280, while the sum is 50.

The spelling of 2617754812421 in words is "two trillion, six hundred seventeen billion, seven hundred fifty-four million, eight hundred twelve thousand, four hundred twenty-one".