139491947348 has 48 divisors (see below), whose sum is σ = 275212882560. Its totient is φ = 61380975744.

The previous prime is 139491947333. The next prime is 139491947359. The reversal of 139491947348 is 843749194931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177218 + ... + 557126.

It is an arithmetic number, because the mean of its divisors is an integer number (5733601720).

Almost surely, 2^139491947348 is an apocalyptic number.

It is an amenable number.

139491947348 is a deficient number, since it is larger than the sum of its proper divisors (135720935212).

139491947348 is a wasteful number, since it uses less digits than its factorization.

139491947348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380256 (or 380254 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 62.

The spelling of 139491947348 in words is "one hundred thirty-nine billion, four hundred ninety-one million, nine hundred forty-seven thousand, three hundred forty-eight".