31438060218851 has 8 divisors (see below), whose sum is σ = 36934224592944. Its totient is φ = 26381588994720.

The previous prime is 31438060218833. The next prime is 31438060218863. The reversal of 31438060218851 is 15881206083413.

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 31438060218851 - 2⁶ = 31438060218787 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31438060218851.

It is not an unprimeable number, because it can be changed into a prime (31438060218451) 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, 109923287336 + ... + 109923287621.

It is an arithmetic number, because the mean of its divisors is an integer number (4616778074118).

Almost surely, 2^{31438060218851} is an apocalyptic number.

31438060218851 is a deficient number, since it is larger than the sum of its proper divisors (5496164374093).

31438060218851 is a wasteful number, since it uses less digits than its factorization.

31438060218851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219846574981.

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 31438060218851 in words is "thirty-one trillion, four hundred thirty-eight billion, sixty million, two hundred eighteen thousand, eight hundred fifty-one".