2498220491777 has 4 divisors (see below), whose sum is σ = 2521139945940. Its totient is φ = 2475301037616.

The previous prime is 2498220491761. The next prime is 2498220491801. The reversal of 2498220491777 is 7771940228942.

It is a Cunningham number, because it is equal to 1580576²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1741249150096 + 756971341681 = 1319564^2 + 870041^2 .

It is a cyclic number.

It is not a de Polignac number, because 2498220491777 - 2⁴ = 2498220491761 is a prime.

It is a super-2 number, since 2×2498220491777² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2498220491717) 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, 11459726918 + ... + 11459727135.

It is an arithmetic number, because the mean of its divisors is an integer number (630284986485).

Almost surely, 2^{2498220491777} is an apocalyptic number.

It is an amenable number.

2498220491777 is a deficient number, since it is larger than the sum of its proper divisors (22919454163).

2498220491777 is a wasteful number, since it uses less digits than its factorization.

2498220491777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22919454162.

The product of its (nonzero) digits is 28449792, while the sum is 62.

The spelling of 2498220491777 in words is "two trillion, four hundred ninety-eight billion, two hundred twenty million, four hundred ninety-one thousand, seven hundred seventy-seven".