139137516648 has 96 divisors (see below), whose sum is σ = 427176640800. Its totient is φ = 40558299264.

The previous prime is 139137516631. The next prime is 139137516649. The reversal of 139137516648 is 846615731931.

139137516648 is a `hidden beast` number, since 1 + 3 + 91 + 37 + 516 + 6 + 4 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 139137516594 and 139137516603.

It is not an unprimeable number, because it can be changed into a prime (139137516649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3894090 + ... + 3929657.

It is an arithmetic number, because the mean of its divisors is an integer number (4449756675).

Almost surely, 2^139137516648 is an apocalyptic number.

139137516648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

139137516648 is an abundant number, since it is smaller than the sum of its proper divisors (288039124152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139137516648 is a wasteful number, since it uses less digits than its factorization.

139137516648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7823791 (or 7823784 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The spelling of 139137516648 in words is "one hundred thirty-nine billion, one hundred thirty-seven million, five hundred sixteen thousand, six hundred forty-eight".