1057671581538 has 64 divisors (see below), whose sum is σ = 2485773827712. Its totient is φ = 295778926080.

The previous prime is 1057671581507. The next prime is 1057671581539. The reversal of 1057671581538 is 8351851767501.

It is a super-2 number, since 2×1057671581538² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057671581539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3361206 + ... + 3662382.

It is an arithmetic number, because the mean of its divisors is an integer number (38840216058).

Almost surely, 2^{1057671581538} is an apocalyptic number.

1057671581538 is an abundant number, since it is smaller than the sum of its proper divisors (1428102246174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1057671581538 is a wasteful number, since it uses less digits than its factorization.

1057671581538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305299.

The product of its (nonzero) digits is 7056000, while the sum is 57.

The spelling of 1057671581538 in words is "one trillion, fifty-seven billion, six hundred seventy-one million, five hundred eighty-one thousand, five hundred thirty-eight".