1057895790638 has 8 divisors (see below), whose sum is σ = 1589998446288. Its totient is φ = 527896308544.

The previous prime is 1057895790631. The next prime is 1057895790659. The reversal of 1057895790638 is 8360975987501.

1057895790638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×1057895790638² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057895790631) 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, 525792131 + ... + 525794142.

It is an arithmetic number, because the mean of its divisors is an integer number (198749805786).

Almost surely, 2^{1057895790638} is an apocalyptic number.

1057895790638 is a deficient number, since it is larger than the sum of its proper divisors (532102655650).

1057895790638 is a wasteful number, since it uses less digits than its factorization.

1057895790638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051586778.

The product of its (nonzero) digits is 114307200, while the sum is 68.

The spelling of 1057895790638 in words is "one trillion, fifty-seven billion, eight hundred ninety-five million, seven hundred ninety thousand, six hundred thirty-eight".