31783125461 has 8 divisors (see below), whose sum is σ = 32069998464. Its totient is φ = 31496351040.

The previous prime is 31783125443. The next prime is 31783125487. The reversal of 31783125461 is 16452138713.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31783125461 - 2³⁴ = 14603256277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31783125401) by changing a digit.

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, 725306 + ... + 767876.

It is an arithmetic number, because the mean of its divisors is an integer number (4008749808).

Almost surely, 2^31783125461 is an apocalyptic number.

It is an amenable number.

31783125461 is a deficient number, since it is larger than the sum of its proper divisors (286873003).

31783125461 is a wasteful number, since it uses less digits than its factorization.

31783125461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49291.

The product of its digits is 120960, while the sum is 41.

The spelling of 31783125461 in words is "thirty-one billion, seven hundred eighty-three million, one hundred twenty-five thousand, four hundred sixty-one".