139806930643 has 8 divisors (see below), whose sum is σ = 140910013440. Its totient is φ = 138708165960.

The previous prime is 139806930569. The next prime is 139806930787. The reversal of 139806930643 is 346039608931.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139806930643 is a prime.

It is a super-2 number, since 2×139806930643² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139806931643) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1014505 + ... + 1144042.

It is an arithmetic number, because the mean of its divisors is an integer number (17613751680).

Almost surely, 2^139806930643 is an apocalyptic number.

139806930643 is a deficient number, since it is larger than the sum of its proper divisors (1103082797).

139806930643 is a wasteful number, since it uses less digits than its factorization.

139806930643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159057.

The product of its (nonzero) digits is 2519424, while the sum is 52.

The spelling of 139806930643 in words is "one hundred thirty-nine billion, eight hundred six million, nine hundred thirty thousand, six hundred forty-three".