16427980919 has 8 divisors (see below), whose sum is σ = 18775739808. Its totient is φ = 14080448160.

The previous prime is 16427980879. The next prime is 16427980927. The reversal of 16427980919 is 91908972461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16427980919 - 2¹² = 16427976823 is a prime.

It is a super-2 number, since 2×16427980919² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16427980949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148949 + ... + 234609.

It is an arithmetic number, because the mean of its divisors is an integer number (2346967476).

Almost surely, 2^16427980919 is an apocalyptic number.

16427980919 is a deficient number, since it is larger than the sum of its proper divisors (2347758889).

16427980919 is an equidigital number, since it uses as much as digits as its factorization.

16427980919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113065.

The product of its (nonzero) digits is 1959552, while the sum is 56.

The spelling of 16427980919 in words is "sixteen billion, four hundred twenty-seven million, nine hundred eighty thousand, nine hundred nineteen".