2081457701 has 4 divisors (see below), whose sum is σ = 2132225004. Its totient is φ = 2030690400.

The previous prime is 2081457689. The next prime is 2081457731. The reversal of 2081457701 is 1077541802.

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

It can be written as a sum of positive squares in 2 ways, for example, as 865889476 + 1215568225 = 29426^2 + 34865^2 .

It is a cyclic number.

It is not a de Polignac number, because 2081457701 - 2¹⁰ = 2081456677 is a prime.

It is a super-2 number, since 2×2081457701² = 8664932322104410802, which 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 (2081457731) 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, 25383590 + ... + 25383671.

It is an arithmetic number, because the mean of its divisors is an integer number (533056251).

Almost surely, 2^2081457701 is an apocalyptic number.

It is an amenable number.

2081457701 is a deficient number, since it is larger than the sum of its proper divisors (50767303).

2081457701 is an equidigital number, since it uses as much as digits as its factorization.

2081457701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50767302.

The product of its (nonzero) digits is 15680, while the sum is 35.

The square root of 2081457701 is about 45622.9953093832. The cubic root of 2081457701 is about 1276.7989883081.

The spelling of 2081457701 in words is "two billion, eighty-one million, four hundred fifty-seven thousand, seven hundred one".