139538730765 has 64 divisors (see below), whose sum is σ = 257011200000. Its totient is φ = 63326859264.

The previous prime is 139538730763. The next prime is 139538730769. The reversal of 139538730765 is 567037835931.

It is not a de Polignac number, because 139538730765 - 2¹ = 139538730763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139538730763) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10105336 + ... + 10119134.

It is an arithmetic number, because the mean of its divisors is an integer number (4015800000).

Almost surely, 2^139538730765 is an apocalyptic number.

139538730765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

139538730765 is a deficient number, since it is larger than the sum of its proper divisors (117472469235).

139538730765 is a wasteful number, since it uses less digits than its factorization.

139538730765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14506.

The product of its (nonzero) digits is 14288400, while the sum is 57.

The spelling of 139538730765 in words is "one hundred thirty-nine billion, five hundred thirty-eight million, seven hundred thirty thousand, seven hundred sixty-five".