39139538901 has 16 divisors (see below), whose sum is σ = 53875261440. Its totient is φ = 25248602160.

The previous prime is 39139538899. The next prime is 39139538939. The reversal of 39139538901 is 10983593193.

It is not a de Polignac number, because 39139538901 - 2¹ = 39139538899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39139538981) 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, 1202520 + ... + 1234638.

It is an arithmetic number, because the mean of its divisors is an integer number (3367203840).

Almost surely, 2^39139538901 is an apocalyptic number.

39139538901 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

39139538901 is a deficient number, since it is larger than the sum of its proper divisors (14735722539).

39139538901 is a wasteful number, since it uses less digits than its factorization.

39139538901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45256.

The product of its (nonzero) digits is 787320, while the sum is 51.

The spelling of 39139538901 in words is "thirty-nine billion, one hundred thirty-nine million, five hundred thirty-eight thousand, nine hundred one".