129387234739004 has 24 divisors (see below), whose sum is σ = 247052152131456. Its totient is φ = 58802817870000.

The previous prime is 129387234738997. The next prime is 129387234739051. The reversal of 129387234739004 is 400937432783921.

It is a happy number.

It is a super-2 number, since 2×129387234739004² (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (62) 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 7 ways as a sum of consecutive naturals, for example, 238765202 + ... + 239306489.

It is an arithmetic number, because the mean of its divisors is an integer number (10293839672144).

Almost surely, 2^{129387234739004} is an apocalyptic number.

It is an amenable number.

129387234739004 is a deficient number, since it is larger than the sum of its proper divisors (117664917392452).

129387234739004 is a wasteful number, since it uses less digits than its factorization.

129387234739004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478077857 (or 478077855 counting only the distinct ones).

The product of its (nonzero) digits is 54867456, while the sum is 62.

The spelling of 129387234739004 in words is "one hundred twenty-nine trillion, three hundred eighty-seven billion, two hundred thirty-four million, seven hundred thirty-nine thousand, four".