139358172768 has 96 divisors (see below), whose sum is σ = 397490365440. Its totient is φ = 42588218880.

The previous prime is 139358172761. The next prime is 139358172851. The reversal of 139358172768 is 867271853931.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139358172761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1175755 + ... + 1288842.

It is an arithmetic number, because the mean of its divisors is an integer number (4140524640).

Almost surely, 2^139358172768 is an apocalyptic number.

It is an amenable number.

139358172768 is an abundant number, since it is smaller than the sum of its proper divisors (258132192672).

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

139358172768 is a wasteful number, since it uses less digits than its factorization.

139358172768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464660 (or 2464652 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 60.

The spelling of 139358172768 in words is "one hundred thirty-nine billion, three hundred fifty-eight million, one hundred seventy-two thousand, seven hundred sixty-eight".