139479785943 has 8 divisors (see below), whose sum is σ = 185974948848. Its totient is φ = 92985573504.

The previous prime is 139479785941. The next prime is 139479785989. The reversal of 139479785943 is 349587974931.

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

It is not a de Polignac number, because 139479785943 - 2¹ = 139479785941 is a prime.

It is a super-2 number, since 2×139479785943² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139479785941) 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, 244605 + ... + 582057.

It is an arithmetic number, because the mean of its divisors is an integer number (23246868606).

Almost surely, 2^139479785943 is an apocalyptic number.

139479785943 is a deficient number, since it is larger than the sum of its proper divisors (46495162905).

139479785943 is a wasteful number, since it uses less digits than its factorization.

139479785943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475233.

The product of its digits is 205752960, while the sum is 69.

The spelling of 139479785943 in words is "one hundred thirty-nine billion, four hundred seventy-nine million, seven hundred eighty-five thousand, nine hundred forty-three".