139871524456 has 32 divisors (see below), whose sum is σ = 264972700800. Its totient is φ = 69215731200.

The previous prime is 139871524447. The next prime is 139871524459. The reversal of 139871524456 is 654425178931.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 139871524397 and 139871524406.

It is not an unprimeable number, because it can be changed into a prime (139871524459) 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, 87256 + ... + 536056.

It is an arithmetic number, because the mean of its divisors is an integer number (8280396900).

Almost surely, 2^139871524456 is an apocalyptic number.

It is an amenable number.

139871524456 is a deficient number, since it is larger than the sum of its proper divisors (125101176344).

139871524456 is a wasteful number, since it uses less digits than its factorization.

139871524456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449209 (or 449205 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 55.

The spelling of 139871524456 in words is "one hundred thirty-nine billion, eight hundred seventy-one million, five hundred twenty-four thousand, four hundred fifty-six".