2423136781 has 8 divisors (see below), whose sum is σ = 2613756320. Its totient is φ = 2233120752.

The previous prime is 2423136773. The next prime is 2423136791. The reversal of 2423136781 is 1876313242.

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 2423136781 - 2³ = 2423136773 is a prime.

It is a super-2 number, since 2×2423136781² = 11743183718870083922, which contains 22 as substring.

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 2423136781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2423136721) 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, 142515 + ... + 158608.

It is an arithmetic number, because the mean of its divisors is an integer number (326719540).

Almost surely, 2^2423136781 is an apocalyptic number.

It is an amenable number.

2423136781 is a deficient number, since it is larger than the sum of its proper divisors (190619539).

2423136781 is a wasteful number, since it uses less digits than its factorization.

2423136781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301755.

The product of its digits is 48384, while the sum is 37.

The square root of 2423136781 is about 49225.3672510424. The cubic root of 2423136781 is about 1343.1545159846.

The spelling of 2423136781 in words is "two billion, four hundred twenty-three million, one hundred thirty-six thousand, seven hundred eighty-one".