139262043885 has 16 divisors (see below), whose sum is σ = 222823897920. Its totient is φ = 74271547520.

The previous prime is 139262043881. The next prime is 139262043887. The reversal of 139262043885 is 588340262931.

It is a happy number.

It is not a de Polignac number, because 139262043885 - 2² = 139262043881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139262043881) 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, 1347121 + ... + 1446809.

It is an arithmetic number, because the mean of its divisors is an integer number (13926493620).

Almost surely, 2^139262043885 is an apocalyptic number.

139262043885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

139262043885 is a deficient number, since it is larger than the sum of its proper divisors (83561854035).

139262043885 is an equidigital number, since it uses as much as digits as its factorization.

139262043885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192828.

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 139262043885 in words is "one hundred thirty-nine billion, two hundred sixty-two million, forty-three thousand, eight hundred eighty-five".