129905151476 has 6 divisors (see below), whose sum is σ = 227334015090. Its totient is φ = 64952575736.

The previous prime is 129905151469. The next prime is 129905151527. The reversal of 129905151476 is 674151509921.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 118769836900 + 11135314576 = 344630^2 + 105524^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16238143931 + ... + 16238143938.

It is an arithmetic number, because the mean of its divisors is an integer number (37889002515).

Almost surely, 2^129905151476 is an apocalyptic number.

It is an amenable number.

129905151476 is a deficient number, since it is larger than the sum of its proper divisors (97428863614).

129905151476 is a wasteful number, since it uses less digits than its factorization.

129905151476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32476287873 (or 32476287871 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 50.

The spelling of 129905151476 in words is "one hundred twenty-nine billion, nine hundred five million, one hundred fifty-one thousand, four hundred seventy-six".