31401916784198 has 16 divisors (see below), whose sum is σ = 47132357345280. Its totient is φ = 15691131495816.

The previous prime is 31401916784191. The next prime is 31401916784201. The reversal of 31401916784198 is 89148761910413.

It is a self number, because there is not a number n which added to its sum of digits gives 31401916784198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31401916784191) 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, 159076523 + ... + 159273801.

It is an arithmetic number, because the mean of its divisors is an integer number (2945772334080).

Almost surely, 2^{31401916784198} is an apocalyptic number.

31401916784198 is a deficient number, since it is larger than the sum of its proper divisors (15730440561082).

31401916784198 is a wasteful number, since it uses less digits than its factorization.

31401916784198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246691.

The product of its (nonzero) digits is 10450944, while the sum is 62.

The spelling of 31401916784198 in words is "thirty-one trillion, four hundred one billion, nine hundred sixteen million, seven hundred eighty-four thousand, one hundred ninety-eight".