2049857082401 has 8 divisors (see below), whose sum is σ = 2050691158824. Its totient is φ = 2049023116800.

The previous prime is 2049857082347. The next prime is 2049857082437. The reversal of 2049857082401 is 1042807589402.

It can be written as a sum of positive squares in 4 ways, for example, as 998050950625 + 1051806131776 = 999025^2 + 1025576^2 .

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 2049857082401 - 2²⁶ = 2049789973537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2049857082401.

It is not an unprimeable number, because it can be changed into a prime (2049857082451) 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, 69535601 + ... + 69565073.

It is an arithmetic number, because the mean of its divisors is an integer number (256336394853).

Almost surely, 2^{2049857082401} is an apocalyptic number.

It is an amenable number.

2049857082401 is a deficient number, since it is larger than the sum of its proper divisors (834076423).

2049857082401 is a wasteful number, since it uses less digits than its factorization.

2049857082401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55411.

The product of its (nonzero) digits is 1290240, while the sum is 50.

The spelling of 2049857082401 in words is "two trillion, forty-nine billion, eight hundred fifty-seven million, eighty-two thousand, four hundred one".