139889946722 has 8 divisors (see below), whose sum is σ = 209868051756. Its totient is φ = 69933929472.

The previous prime is 139889946709. The next prime is 139889946767. The reversal of 139889946722 is 227649988931.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 139344677521 + 545269201 = 373289^2 + 23351^2 .

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

It is a super-3 number, since 3×139889946722³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5506103 + ... + 5531450.

Almost surely, 2^139889946722 is an apocalyptic number.

139889946722 is a deficient number, since it is larger than the sum of its proper divisors (69978105034).

139889946722 is a wasteful number, since it uses less digits than its factorization.

139889946722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11043892.

The product of its digits is 94058496, while the sum is 68.

The spelling of 139889946722 in words is "one hundred thirty-nine billion, eight hundred eighty-nine million, nine hundred forty-six thousand, seven hundred twenty-two".