129461050980 has 120 divisors (see below), whose sum is σ = 430013856888. Its totient is φ = 32492178432.

The previous prime is 129461050973. The next prime is 129461050987. The reversal of 129461050980 is 89050164921.

129461050980 is a `hidden beast` number, since 1 + 2 + 9 + 4 + 61 + 0 + 509 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (129461050973) and next prime (129461050987).

It can be written as a sum of positive squares in 4 ways, for example, as 10779422976 + 118681628004 = 103824^2 + 344502^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (129461050987) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2322879 + ... + 2377958.

Almost surely, 2^129461050980 is an apocalyptic number.

129461050980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129461050980 is an abundant number, since it is smaller than the sum of its proper divisors (300552805908).

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

129461050980 is a wasteful number, since it uses less digits than its factorization.

129461050980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4700875 (or 4700864 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 129461050980 in words is "one hundred twenty-nine billion, four hundred sixty-one million, fifty thousand, nine hundred eighty".