4057787630021 has 4 divisors (see below), whose sum is σ = 4114939568544. Its totient is φ = 4000635691500.

The previous prime is 4057787629993. The next prime is 4057787630033. The reversal of 4057787630021 is 1200367877504.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 4057787630021 - 2³⁸ = 3782909723077 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 (4057787630521) 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, 28575969155 + ... + 28575969296.

It is an arithmetic number, because the mean of its divisors is an integer number (1028734892136).

Almost surely, 2^{4057787630021} is an apocalyptic number.

It is an amenable number.

4057787630021 is a deficient number, since it is larger than the sum of its proper divisors (57151938523).

4057787630021 is an equidigital number, since it uses as much as digits as its factorization.

4057787630021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57151938522.

The product of its (nonzero) digits is 1975680, while the sum is 50.

The spelling of 4057787630021 in words is "four trillion, fifty-seven billion, seven hundred eighty-seven million, six hundred thirty thousand, twenty-one".