31376178242 has 16 divisors (see below), whose sum is σ = 48594961152. Its totient is φ = 15178118160.

The previous prime is 31376178187. The next prime is 31376178271. The reversal of 31376178242 is 24287167313.

It is a super-2 number, since 2×31376178242² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31376178193 and 31376178202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185753 + ... + 311859.

It is an arithmetic number, because the mean of its divisors is an integer number (3037185072).

Almost surely, 2^31376178242 is an apocalyptic number.

31376178242 is a deficient number, since it is larger than the sum of its proper divisors (17218782910).

31376178242 is a wasteful number, since it uses less digits than its factorization.

31376178242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130153.

The product of its digits is 338688, while the sum is 44.

The spelling of 31376178242 in words is "thirty-one billion, three hundred seventy-six million, one hundred seventy-eight thousand, two hundred forty-two".