31429256338 has 16 divisors (see below), whose sum is σ = 49198337280. Its totient is φ = 15029941696.

The previous prime is 31429256237. The next prime is 31429256351. The reversal of 31429256338 is 83365292413.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572058 + ... + 624586.

It is an arithmetic number, because the mean of its divisors is an integer number (3074896080).

Almost surely, 2^31429256338 is an apocalyptic number.

31429256338 is a deficient number, since it is larger than the sum of its proper divisors (17769080942).

31429256338 is a wasteful number, since it uses less digits than its factorization.

31429256338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65561.

The product of its digits is 933120, while the sum is 46.

The spelling of 31429256338 in words is "thirty-one billion, four hundred twenty-nine million, two hundred fifty-six thousand, three hundred thirty-eight".