31860192049 has 12 divisors (see below), whose sum is σ = 37074288384. Its totient is φ = 27299575464.

The previous prime is 31860191959. The next prime is 31860192071. The reversal of 31860192049 is 94029106813.

It is a happy number.

It is not a de Polignac number, because 31860192049 - 2²¹ = 31858094897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31860191996 and 31860192014.

It is not an unprimeable number, because it can be changed into a prime (31860192079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40584 + ... + 255670.

It is an arithmetic number, because the mean of its divisors is an integer number (3089524032).

Almost surely, 2^31860192049 is an apocalyptic number.

It is an amenable number.

31860192049 is a deficient number, since it is larger than the sum of its proper divisors (5214096335).

31860192049 is a wasteful number, since it uses less digits than its factorization.

31860192049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218124 (or 218117 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 31860192049 in words is "thirty-one billion, eight hundred sixty million, one hundred ninety-two thousand, forty-nine".