129224791962 has 80 divisors (see below), whose sum is σ = 331969714560. Its totient is φ = 36804795552.

The previous prime is 129224791957. The next prime is 129224792023. The reversal of 129224791962 is 269197422921.

It is a happy number.

129224791962 is a `hidden beast` number, since 12 + 92 + 2 + 479 + 19 + 62 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 129224791899 and 129224791908.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 179739 + ... + 539217.

It is an arithmetic number, because the mean of its divisors is an integer number (4149621432).

Almost surely, 2^129224791962 is an apocalyptic number.

It is a pronic number, being equal to 359478×359479.

It is a practical number, because each smaller number is the sum of distinct divisors of 129224791962, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165984857280).

129224791962 is an abundant number, since it is smaller than the sum of its proper divisors (202744922598).

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

129224791962 is a wasteful number, since it uses less digits than its factorization.

129224791962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359817 (or 359808 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The spelling of 129224791962 in words is "one hundred twenty-nine billion, two hundred twenty-four million, seven hundred ninety-one thousand, nine hundred sixty-two".