7801111423 has 8 divisors (see below), whose sum is σ = 8916423840. Its totient is φ = 6686016000.

The previous prime is 7801111399. The next prime is 7801111441. The reversal of 7801111423 is 3241111087.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7801111423 is a prime.

It is a super-2 number, since 2×7801111423² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7801111391 and 7801111400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7801111463) 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, 31923 + ... + 128923.

It is an arithmetic number, because the mean of its divisors is an integer number (1114552980).

Almost surely, 2^7801111423 is an apocalyptic number.

7801111423 is a deficient number, since it is larger than the sum of its proper divisors (1115312417).

7801111423 is a wasteful number, since it uses less digits than its factorization.

7801111423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108497.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 7801111423 is about 88323.9006328412. The cubic root of 7801111423 is about 1983.2866733242.

The spelling of 7801111423 in words is "seven billion, eight hundred one million, one hundred eleven thousand, four hundred twenty-three".