29125801380 has 144 divisors (see below), whose sum is σ = 91157681664. Its totient is φ = 6938081280.

The previous prime is 29125801307. The next prime is 29125801387. The reversal of 29125801380 is 8310852192.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (29125801387) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 268012 + ... + 360668.

It is an arithmetic number, because the mean of its divisors is an integer number (633039456).

Almost surely, 2^29125801380 is an apocalyptic number.

29125801380 is a gapful number since it is divisible by the number (20) 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 29125801380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45578840832).

29125801380 is an abundant number, since it is smaller than the sum of its proper divisors (62031880284).

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

29125801380 is a wasteful number, since it uses less digits than its factorization.

29125801380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92726 (or 92711 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The spelling of 29125801380 in words is "twenty-nine billion, one hundred twenty-five million, eight hundred one thousand, three hundred eighty".