2590471821 has 8 divisors (see below), whose sum is σ = 3947385664. Its totient is φ = 1480269600.

The previous prime is 2590471813. The next prime is 2590471843. The reversal of 2590471821 is 1281740952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2590471821 - 2³ = 2590471813 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2590471821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2590471801) 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, 61677880 + ... + 61677921.

It is an arithmetic number, because the mean of its divisors is an integer number (493423208).

Almost surely, 2^2590471821 is an apocalyptic number.

2590471821 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2590471821 is a deficient number, since it is larger than the sum of its proper divisors (1356913843).

2590471821 is a wasteful number, since it uses less digits than its factorization.

2590471821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123355811.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 2590471821 is about 50896.6778974817. The cubic root of 2590471821 is about 1373.3870799273.

The spelling of 2590471821 in words is "two billion, five hundred ninety million, four hundred seventy-one thousand, eight hundred twenty-one".