2479988121407 has 4 divisors (see below), whose sum is σ = 2522021818440. Its totient is φ = 2437954424376.

The previous prime is 2479988121367. The next prime is 2479988121439. The reversal of 2479988121407 is 7041218899742.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2479988121407 - 2²⁸ = 2479719685951 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 2479988121407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2479988121487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21016848428 + ... + 21016848545.

It is an arithmetic number, because the mean of its divisors is an integer number (630505454610).

Almost surely, 2^{2479988121407} is an apocalyptic number.

2479988121407 is a deficient number, since it is larger than the sum of its proper divisors (42033697033).

2479988121407 is an equidigital number, since it uses as much as digits as its factorization.

2479988121407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42033697032.

The product of its (nonzero) digits is 16257024, while the sum is 62.

The spelling of 2479988121407 in words is "two trillion, four hundred seventy-nine billion, nine hundred eighty-eight million, one hundred twenty-one thousand, four hundred seven".