31463431493 has 8 divisors (see below), whose sum is σ = 34976718336. Its totient is φ = 28106290800.

The previous prime is 31463431471. The next prime is 31463431541. The reversal of 31463431493 is 39413436413.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31463431493 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31463431493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31463431403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39036113 + ... + 39036918.

It is an arithmetic number, because the mean of its divisors is an integer number (4372089792).

Almost surely, 2^31463431493 is an apocalyptic number.

It is an amenable number.

31463431493 is a deficient number, since it is larger than the sum of its proper divisors (3513286843).

31463431493 is a wasteful number, since it uses less digits than its factorization.

31463431493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78073075.

The product of its digits is 279936, while the sum is 41.

The spelling of 31463431493 in words is "thirty-one billion, four hundred sixty-three million, four hundred thirty-one thousand, four hundred ninety-three".