31253763047 has 4 divisors (see below), whose sum is σ = 33657898680. Its totient is φ = 28849627416.

The previous prime is 31253763011. The next prime is 31253763091. The reversal of 31253763047 is 74036735213.

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

It is a cyclic number.

It is not a de Polignac number, because 31253763047 - 2⁶ = 31253762983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31253762995 and 31253763013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31253763097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1202067797 + ... + 1202067822.

It is an arithmetic number, because the mean of its divisors is an integer number (8414474670).

Almost surely, 2^31253763047 is an apocalyptic number.

31253763047 is a deficient number, since it is larger than the sum of its proper divisors (2404135633).

31253763047 is a wasteful number, since it uses less digits than its factorization.

31253763047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404135632.

The product of its (nonzero) digits is 317520, while the sum is 41.

The spelling of 31253763047 in words is "thirty-one billion, two hundred fifty-three million, seven hundred sixty-three thousand, forty-seven".