31419986722 has 8 divisors (see below), whose sum is σ = 48755151900. Its totient is φ = 15168269424.

The previous prime is 31419986713. The next prime is 31419986783. The reversal of 31419986722 is 22768991413.

It can be written as a sum of positive squares in 2 ways, for example, as 30216521241 + 1203465481 = 173829^2 + 34691^2 .

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

It is a super-2 number, since 2×31419986722² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31419986722.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270861897 + ... + 270862012.

Almost surely, 2^31419986722 is an apocalyptic number.

31419986722 is a deficient number, since it is larger than the sum of its proper divisors (17335165178).

31419986722 is a wasteful number, since it uses less digits than its factorization.

31419986722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541723940.

The product of its digits is 1306368, while the sum is 52.

The spelling of 31419986722 in words is "thirty-one billion, four hundred nineteen million, nine hundred eighty-six thousand, seven hundred twenty-two".