249422142886 has 24 divisors (see below), whose sum is σ = 460817143416. Its totient is φ = 100607250240.

The previous prime is 249422142883. The next prime is 249422142899. The reversal of 249422142886 is 688241224942.

It is a happy number.

It is a super-2 number, since 2×249422142886² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249422142883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74854920 + ... + 74858251.

It is an arithmetic number, because the mean of its divisors is an integer number (19200714309).

Almost surely, 2^249422142886 is an apocalyptic number.

249422142886 is a deficient number, since it is larger than the sum of its proper divisors (211395000530).

249422142886 is a wasteful number, since it uses less digits than its factorization.

249422142886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149713204 (or 149713197 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 52.

The spelling of 249422142886 in words is "two hundred forty-nine billion, four hundred twenty-two million, one hundred forty-two thousand, eight hundred eighty-six".