2422878781 has 8 divisors (see below), whose sum is σ = 2443770560. Its totient is φ = 2402060832.

The previous prime is 2422878767. The next prime is 2422878797. The reversal of 2422878781 is 1878782242.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2422878781 - 2¹¹ = 2422876733 is a prime.

It is a super-2 number, since 2×2422878781² = 11740683174840091922, 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 (2422878761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48496 + ... + 84838.

It is an arithmetic number, because the mean of its divisors is an integer number (305471320).

Almost surely, 2^2422878781 is an apocalyptic number.

It is an amenable number.

2422878781 is a deficient number, since it is larger than the sum of its proper divisors (20891779).

2422878781 is a wasteful number, since it uses less digits than its factorization.

2422878781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36915.

The product of its digits is 802816, while the sum is 49.

The square root of 2422878781 is about 49222.7465812301. The cubic root of 2422878781 is about 1343.1068441448.

The spelling of 2422878781 in words is "two billion, four hundred twenty-two million, eight hundred seventy-eight thousand, seven hundred eighty-one".