129700738944 has 384 divisors, whose sum is σ = 471499120800. Its totient is φ = 34876735488.

The previous prime is 129700738933. The next prime is 129700739039. The reversal of 129700738944 is 449837007921.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2856322 + ... + 2901374.

Almost surely, 2^129700738944 is an apocalyptic number.

129700738944 is a gapful number since it is divisible by the number (14) 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 129700738944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235749560400).

129700738944 is an abundant number, since it is smaller than the sum of its proper divisors (341798381856).

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

129700738944 is a wasteful number, since it uses less digits than its factorization.

129700738944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45107 (or 45082 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 129700738944 in words is "one hundred twenty-nine billion, seven hundred million, seven hundred thirty-eight thousand, nine hundred forty-four".