2468980781 has 4 divisors (see below), whose sum is σ = 2469086364. Its totient is φ = 2468875200.

The previous prime is 2468980769. The next prime is 2468980799. The reversal of 2468980781 is 1870898642.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1870898642 = 2 ⋅935449321.

It can be written as a sum of positive squares in 2 ways, for example, as 1608731881 + 860248900 = 40109^2 + 29330^2 .

It is a cyclic number.

It is not a de Polignac number, because 2468980781 - 2²⁶ = 2401871917 is a prime.

It is a super-2 number, since 2×2468980781² = 12191732193894739922, which 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 (2468980081) 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, 350 + ... + 70271.

It is an arithmetic number, because the mean of its divisors is an integer number (617271591).

Almost surely, 2^2468980781 is an apocalyptic number.

It is an amenable number.

2468980781 is a deficient number, since it is larger than the sum of its proper divisors (105583).

2468980781 is an equidigital number, since it uses as much as digits as its factorization.

2468980781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105582.

The product of its (nonzero) digits is 1548288, while the sum is 53.

The square root of 2468980781 is about 49688.8396020676. The cubic root of 2468980781 is about 1351.5721567121.

The spelling of 2468980781 in words is "two billion, four hundred sixty-eight million, nine hundred eighty thousand, seven hundred eighty-one".