129377018017 has 16 divisors (see below), whose sum is σ = 142320874752. Its totient is φ = 116861535360.

The previous prime is 129377018011. The next prime is 129377018021. The reversal of 129377018017 is 710810773921.

It is a cyclic number.

It is not a de Polignac number, because 129377018017 - 2³ = 129377018009 is a prime.

It is a super-2 number, since 2×129377018017² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129377018011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3728773 + ... + 3763309.

It is an arithmetic number, because the mean of its divisors is an integer number (8895054672).

Almost surely, 2^129377018017 is an apocalyptic number.

It is an amenable number.

129377018017 is a deficient number, since it is larger than the sum of its proper divisors (12943856735).

129377018017 is a wasteful number, since it uses less digits than its factorization.

129377018017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40728.

The product of its (nonzero) digits is 148176, while the sum is 46.

The spelling of 129377018017 in words is "one hundred twenty-nine billion, three hundred seventy-seven million, eighteen thousand, seventeen".