100047857894 has 4 divisors (see below), whose sum is σ = 150071786844. Its totient is φ = 50023928946.

The previous prime is 100047857881. The next prime is 100047857909. The reversal of 100047857894 is 498758740001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 498758740001 = 101063 ⋅4935127.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25011964472 + ... + 25011964475.

It is an arithmetic number, because the mean of its divisors is an integer number (37517946711).

Almost surely, 2^100047857894 is an apocalyptic number.

100047857894 is a deficient number, since it is larger than the sum of its proper divisors (50023928950).

100047857894 is an equidigital number, since it uses as much as digits as its factorization.

100047857894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50023928949.

The product of its (nonzero) digits is 2257920, while the sum is 53.

The spelling of 100047857894 in words is "one hundred billion, forty-seven million, eight hundred fifty-seven thousand, eight hundred ninety-four".