82025890019 has 4 divisors (see below), whose sum is σ = 82118366544. Its totient is φ = 81933413496.

The previous prime is 82025890013. The next prime is 82025890061. The reversal of 82025890019 is 91009852028.

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

It is a cyclic number.

It is not a de Polignac number, because 82025890019 - 2³⁶ = 13306413283 is a prime.

It is a super-2 number, since 2×82025890019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82025890013) 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, 46236932 + ... + 46238705.

It is an arithmetic number, because the mean of its divisors is an integer number (20529591636).

Almost surely, 2^82025890019 is an apocalyptic number.

82025890019 is a deficient number, since it is larger than the sum of its proper divisors (92476525).

82025890019 is an equidigital number, since it uses as much as digits as its factorization.

82025890019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92476524.

The product of its (nonzero) digits is 103680, while the sum is 44.

The spelling of 82025890019 in words is "eighty-two billion, twenty-five million, eight hundred ninety thousand, nineteen".