129046594840 has 32 divisors (see below), whose sum is σ = 292641108480. Its totient is φ = 51212189952.

The previous prime is 129046594819. The next prime is 129046594877. The reversal of 129046594840 is 48495640921.

It is a super-2 number, since 2×129046594840² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12696357 + ... + 12706516.

It is an arithmetic number, because the mean of its divisors is an integer number (9145034640).

Almost surely, 2^129046594840 is an apocalyptic number.

129046594840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129046594840 is an abundant number, since it is smaller than the sum of its proper divisors (163594513640).

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

129046594840 is a wasteful number, since it uses less digits than its factorization.

129046594840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25403011 (or 25403007 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 129046594840 in words is "one hundred twenty-nine billion, forty-six million, five hundred ninety-four thousand, eight hundred forty".