139699554774051 has 4 divisors (see below), whose sum is σ = 186266073032072. Its totient is φ = 93133036516032.

The previous prime is 139699554774047. The next prime is 139699554774083. The reversal of 139699554774051 is 150477455996931.

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

It is not a de Polignac number, because 139699554774051 - 2² = 139699554774047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139699554770051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23283259129006 + ... + 23283259129011.

It is an arithmetic number, because the mean of its divisors is an integer number (46566518258018).

Almost surely, 2^{139699554774051} is an apocalyptic number.

139699554774051 is a deficient number, since it is larger than the sum of its proper divisors (46566518258021).

139699554774051 is an equidigital number, since it uses as much as digits as its factorization.

139699554774051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46566518258020.

The product of its (nonzero) digits is 1285956000, while the sum is 75.

The spelling of 139699554774051 in words is "one hundred thirty-nine trillion, six hundred ninety-nine billion, five hundred fifty-four million, seven hundred seventy-four thousand, fifty-one".