100691479434 has 128 divisors (see below), whose sum is σ = 266354307072. Its totient is φ = 24620682240.

The previous prime is 100691479397. The next prime is 100691479481. The reversal of 100691479434 is 434974196001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 540939 + ... + 702849.

It is an arithmetic number, because the mean of its divisors is an integer number (2080893024).

Almost surely, 2^100691479434 is an apocalyptic number.

100691479434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 100691479434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133177153536).

100691479434 is an abundant number, since it is smaller than the sum of its proper divisors (165662827638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100691479434 is a wasteful number, since it uses less digits than its factorization.

100691479434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162020.

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 100691479434 in words is "one hundred billion, six hundred ninety-one million, four hundred seventy-nine thousand, four hundred thirty-four".