8017801942 has 4 divisors (see below), whose sum is σ = 12026702916. Its totient is φ = 4008900970.

The previous prime is 8017801927. The next prime is 8017801949. The reversal of 8017801942 is 2491087108.

It is a happy number.

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

It is a super-2 number, since 2×8017801942² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 8017801895 and 8017801904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8017801949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2004450484 + ... + 2004450487.

It is an arithmetic number, because the mean of its divisors is an integer number (3006675729).

Almost surely, 2^8017801942 is an apocalyptic number.

8017801942 is a deficient number, since it is larger than the sum of its proper divisors (4008900974).

8017801942 is a wasteful number, since it uses less digits than its factorization.

8017801942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4008900973.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 8017801942 is about 89542.1796808633. The cubic root of 8017801942 is about 2001.4823961460.

The spelling of 8017801942 in words is "eight billion, seventeen million, eight hundred one thousand, nine hundred forty-two".