4002582148261 has 4 divisors (see below), whose sum is σ = 4002586726624. Its totient is φ = 4002577569900.

The previous prime is 4002582148249. The next prime is 4002582148273. The reversal of 4002582148261 is 1628412852004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (4002582148249) and next prime (4002582148273).

It is a cyclic number.

It is not a de Polignac number, because 4002582148261 - 2⁷ = 4002582148133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002582148661) 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, 524235 + ... + 2877496.

It is an arithmetic number, because the mean of its divisors is an integer number (1000646681656).

Almost surely, 2^{4002582148261} is an apocalyptic number.

It is an amenable number.

4002582148261 is a deficient number, since it is larger than the sum of its proper divisors (4578363).

4002582148261 is a wasteful number, since it uses less digits than its factorization.

4002582148261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4578362.

The product of its (nonzero) digits is 245760, while the sum is 43.

The spelling of 4002582148261 in words is "four trillion, two billion, five hundred eighty-two million, one hundred forty-eight thousand, two hundred sixty-one".