106428194879 has 4 divisors (see below), whose sum is σ = 112029678840. Its totient is φ = 100826710920.

The previous prime is 106428194869. The next prime is 106428194881. The reversal of 106428194879 is 978491824601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106428194879 is a prime.

It is a super-2 number, since 2×106428194879² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106428194849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2800741952 + ... + 2800741989.

It is an arithmetic number, because the mean of its divisors is an integer number (28007419710).

Almost surely, 2^106428194879 is an apocalyptic number.

106428194879 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

106428194879 is a deficient number, since it is larger than the sum of its proper divisors (5601483961).

106428194879 is an equidigital number, since it uses as much as digits as its factorization.

106428194879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5601483960.

The product of its (nonzero) digits is 6967296, while the sum is 59.

The spelling of 106428194879 in words is "one hundred six billion, four hundred twenty-eight million, one hundred ninety-four thousand, eight hundred seventy-nine".