31498950671 has 6 divisors (see below), whose sum is σ = 33244045272. Its totient is φ = 29841110820.

The previous prime is 31498950661. The next prime is 31498950787. The reversal of 31498950671 is 17605989413.

It is a de Polignac number, because none of the positive numbers 2^k-31498950671 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 (31498950641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43626995 + ... + 43627716.

It is an arithmetic number, because the mean of its divisors is an integer number (5540674212).

Almost surely, 2^31498950671 is an apocalyptic number.

31498950671 is a deficient number, since it is larger than the sum of its proper divisors (1745094601).

31498950671 is an equidigital number, since it uses as much as digits as its factorization.

31498950671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87254749 (or 87254730 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 31498950671 in words is "thirty-one billion, four hundred ninety-eight million, nine hundred fifty thousand, six hundred seventy-one".