129010894492 has 48 divisors (see below), whose sum is σ = 231309872640. Its totient is φ = 62942443200.

The previous prime is 129010894483. The next prime is 129010894549. The reversal of 129010894492 is 294498010921.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36743017 + ... + 36746527.

It is an arithmetic number, because the mean of its divisors is an integer number (4818955680).

Almost surely, 2^129010894492 is an apocalyptic number.

It is an amenable number.

129010894492 is a deficient number, since it is larger than the sum of its proper divisors (102298978148).

129010894492 is a wasteful number, since it uses less digits than its factorization.

129010894492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4882 (or 4880 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 49.

The spelling of 129010894492 in words is "one hundred twenty-nine billion, ten million, eight hundred ninety-four thousand, four hundred ninety-two".