82801431919 has 8 divisors (see below), whose sum is σ = 87173936640. Its totient is φ = 78430380696.

The previous prime is 82801431917. The next prime is 82801431941. The reversal of 82801431919 is 91913410828.

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 82801431919 - 2¹ = 82801431917 is a prime.

It is a super-2 number, since 2×82801431919² (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 (82801431913) 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, 245449 + ... + 475234.

It is an arithmetic number, because the mean of its divisors is an integer number (10896742080).

Almost surely, 2^82801431919 is an apocalyptic number.

82801431919 is a deficient number, since it is larger than the sum of its proper divisors (4372504721).

82801431919 is a wasteful number, since it uses less digits than its factorization.

82801431919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726749.

The product of its (nonzero) digits is 124416, while the sum is 46.

The spelling of 82801431919 in words is "eighty-two billion, eight hundred one million, four hundred thirty-one thousand, nine hundred nineteen".