100429606985 has 32 divisors (see below), whose sum is σ = 123944214528. Its totient is φ = 78089356800.

The previous prime is 100429606957. The next prime is 100429606987. The reversal of 100429606985 is 589606924001.

It is not a de Polignac number, because 100429606985 - 2⁸ = 100429606729 is a prime.

It is a super-2 number, since 2×100429606985² (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 (100429606987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15322469 + ... + 15329021.

It is an arithmetic number, because the mean of its divisors is an integer number (3873256704).

Almost surely, 2^100429606985 is an apocalyptic number.

It is an amenable number.

100429606985 is a deficient number, since it is larger than the sum of its proper divisors (23514607543).

100429606985 is a wasteful number, since it uses less digits than its factorization.

100429606985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7145.

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 100429606985 in words is "one hundred billion, four hundred twenty-nine million, six hundred six thousand, nine hundred eighty-five".