139429769920 has 224 divisors, whose sum is σ = 390572426880. Its totient is φ = 46408826880.

The previous prime is 139429769893. The next prime is 139429769933. The reversal of 139429769920 is 29967924931.

139429769920 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (224).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43178866 + ... + 43182094.

Almost surely, 2^139429769920 is an apocalyptic number.

139429769920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139429769920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195286213440).

139429769920 is an abundant number, since it is smaller than the sum of its proper divisors (251142656960).

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

139429769920 is a wasteful number, since it uses less digits than its factorization.

139429769920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3811 (or 3801 counting only the distinct ones).

The product of its (nonzero) digits is 13226976, while the sum is 61.

The spelling of 139429769920 in words is "one hundred thirty-nine billion, four hundred twenty-nine million, seven hundred sixty-nine thousand, nine hundred twenty".