139884859540 has 12 divisors (see below), whose sum is σ = 293758205076. Its totient is φ = 55953943808.

The previous prime is 139884859493. The next prime is 139884859547. The reversal of 139884859540 is 45958488931.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19180034064 + 120704825476 = 138492^2 + 347426^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139884859547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3497121469 + ... + 3497121508.

It is an arithmetic number, because the mean of its divisors is an integer number (24479850423).

Almost surely, 2^139884859540 is an apocalyptic number.

139884859540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139884859540 is an abundant number, since it is smaller than the sum of its proper divisors (153873345536).

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

139884859540 is a wasteful number, since it uses less digits than its factorization.

139884859540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6994242986 (or 6994242984 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 64.

The spelling of 139884859540 in words is "one hundred thirty-nine billion, eight hundred eighty-four million, eight hundred fifty-nine thousand, five hundred forty".