139727561674 has 4 divisors (see below), whose sum is σ = 209591342514. Its totient is φ = 69863780836.

The previous prime is 139727561647. The next prime is 139727561683. The reversal of 139727561674 is 476165727931.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 116427676225 + 23299885449 = 341215^2 + 152643^2 .

It is a super-2 number, since 2×139727561674² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34931890417 + ... + 34931890420.

Almost surely, 2^139727561674 is an apocalyptic number.

139727561674 is a deficient number, since it is larger than the sum of its proper divisors (69863780840).

139727561674 is an equidigital number, since it uses as much as digits as its factorization.

139727561674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69863780839.

The product of its digits is 13335840, while the sum is 58.

The spelling of 139727561674 in words is "one hundred thirty-nine billion, seven hundred twenty-seven million, five hundred sixty-one thousand, six hundred seventy-four".