2057319767 has 4 divisors (see below), whose sum is σ = 2101092576. Its totient is φ = 2013546960.

The previous prime is 2057319739. The next prime is 2057319809. The reversal of 2057319767 is 7679137502.

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

It is a cyclic number.

It is not a de Polignac number, because 2057319767 - 2⁶ = 2057319703 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 43772761 = 2057319767 / (2 + 0 + 5 + 7 + 3 + 1 + 9 + 7 + 6 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2057319167) 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, 21886334 + ... + 21886427.

It is an arithmetic number, because the mean of its divisors is an integer number (525273144).

Almost surely, 2^2057319767 is an apocalyptic number.

2057319767 is a deficient number, since it is larger than the sum of its proper divisors (43772809).

2057319767 is an equidigital number, since it uses as much as digits as its factorization.

2057319767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43772808.

The product of its (nonzero) digits is 555660, while the sum is 47.

The square root of 2057319767 is about 45357.6869670401. The cubic root of 2057319767 is about 1271.8442560706.

The spelling of 2057319767 in words is "two billion, fifty-seven million, three hundred nineteen thousand, seven hundred sixty-seven".