1820952259913 has 8 divisors (see below), whose sum is σ = 1945400687520. Its totient is φ = 1699364715840.

The previous prime is 1820952259909. The next prime is 1820952259933. The reversal of 1820952259913 is 3199522590281.

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 1820952259913 - 2² = 1820952259909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1820952259933) 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, 715219568 + ... + 715222113.

It is an arithmetic number, because the mean of its divisors is an integer number (243175085940).

Almost surely, 2^{1820952259913} is an apocalyptic number.

It is an amenable number.

1820952259913 is a deficient number, since it is larger than the sum of its proper divisors (124448427607).

1820952259913 is a wasteful number, since it uses less digits than its factorization.

1820952259913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430441767.

The product of its (nonzero) digits is 3499200, while the sum is 56.

The spelling of 1820952259913 in words is "one trillion, eight hundred twenty billion, nine hundred fifty-two million, two hundred fifty-nine thousand, nine hundred thirteen".