31438892938 has 8 divisors (see below), whose sum is σ = 47248509888. Its totient is φ = 15689389644.

The previous prime is 31438892911. The next prime is 31438892951. The reversal of 31438892938 is 83929883413.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15027106 + ... + 15029197.

It is an arithmetic number, because the mean of its divisors is an integer number (5906063736).

Almost surely, 2^31438892938 is an apocalyptic number.

31438892938 is a deficient number, since it is larger than the sum of its proper divisors (15809616950).

31438892938 is a wasteful number, since it uses less digits than its factorization.

31438892938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30056828.

The product of its digits is 8957952, while the sum is 58.

The spelling of 31438892938 in words is "thirty-one billion, four hundred thirty-eight million, eight hundred ninety-two thousand, nine hundred thirty-eight".