139894377499 has 8 divisors (see below), whose sum is σ = 142907240448. Its totient is φ = 136883030760.

The previous prime is 139894377473. The next prime is 139894377503. The reversal of 139894377499 is 994773498931.

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

It is a cyclic number.

It is not a de Polignac number, because 139894377499 - 2⁹ = 139894376987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139894377299) 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, 191547 + ... + 562564.

It is an arithmetic number, because the mean of its divisors is an integer number (17863405056).

Almost surely, 2^139894377499 is an apocalyptic number.

139894377499 is a deficient number, since it is larger than the sum of its proper divisors (3012862949).

139894377499 is an equidigital number, since it uses as much as digits as its factorization.

139894377499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758105.

The product of its digits is 370355328, while the sum is 73.

The spelling of 139894377499 in words is "one hundred thirty-nine billion, eight hundred ninety-four million, three hundred seventy-seven thousand, four hundred ninety-nine".