100438473291 has 16 divisors (see below), whose sum is σ = 144483032064. Its totient is φ = 61695283104.

The previous prime is 100438473253. The next prime is 100438473361. The reversal of 100438473291 is 192374834001.

It is not a de Polignac number, because 100438473291 - 2¹⁴ = 100438456907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100438473791) 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, 2332731 + ... + 2375396.

It is an arithmetic number, because the mean of its divisors is an integer number (9030189504).

Almost surely, 2^100438473291 is an apocalyptic number.

100438473291 is a deficient number, since it is larger than the sum of its proper divisors (44044558773).

100438473291 is a wasteful number, since it uses less digits than its factorization.

100438473291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4708690.

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 100438473291 in words is "one hundred billion, four hundred thirty-eight million, four hundred seventy-three thousand, two hundred ninety-one".