139920434920 has 48 divisors (see below), whose sum is σ = 366220327140. Its totient is φ = 47972719872.

The previous prime is 139920434911. The next prime is 139920434987. The reversal of 139920434920 is 29434029931.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 138462875236 + 1457559684 = 372106^2 + 38178^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35692029 + ... + 35695948.

Almost surely, 2^139920434920 is an apocalyptic number.

139920434920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139920434920 is an abundant number, since it is smaller than the sum of its proper divisors (226299892220).

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

139920434920 is a wasteful number, since it uses less digits than its factorization.

139920434920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71388002 (or 71387991 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 46.

The spelling of 139920434920 in words is "one hundred thirty-nine billion, nine hundred twenty million, four hundred thirty-four thousand, nine hundred twenty".