139049263454 has 12 divisors (see below), whose sum is σ = 209521070304. Its totient is φ = 69208942224.

The previous prime is 139049263433. The next prime is 139049263459. The reversal of 139049263454 is 454362940931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139049263459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7866194 + ... + 7883850.

It is an arithmetic number, because the mean of its divisors is an integer number (17460089192).

Almost surely, 2^139049263454 is an apocalyptic number.

139049263454 is a deficient number, since it is larger than the sum of its proper divisors (70471806850).

139049263454 is an frugal number, since it uses more digits than its factorization.

139049263454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35539 (or 17882 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 50.

The spelling of 139049263454 in words is "one hundred thirty-nine billion, forty-nine million, two hundred sixty-three thousand, four hundred fifty-four".