129787353215 has 16 divisors (see below), whose sum is σ = 167748960288. Its totient is φ = 95829388416.

The previous prime is 129787353193. The next prime is 129787353239. The reversal of 129787353215 is 512353787921.

It is a cyclic number.

It is not a de Polignac number, because 129787353215 - 2⁶ = 129787353151 is a prime.

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, 332957 + ... + 608633.

It is an arithmetic number, because the mean of its divisors is an integer number (10484310018).

Almost surely, 2^129787353215 is an apocalyptic number.

129787353215 is a deficient number, since it is larger than the sum of its proper divisors (37961607073).

129787353215 is a wasteful number, since it uses less digits than its factorization.

129787353215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282938.

The product of its digits is 3175200, while the sum is 53.

The spelling of 129787353215 in words is "one hundred twenty-nine billion, seven hundred eighty-seven million, three hundred fifty-three thousand, two hundred fifteen".