1057918098891 has 32 divisors (see below), whose sum is σ = 1441301299200. Its totient is φ = 689986252800.

The previous prime is 1057918098889. The next prime is 1057918098931. The reversal of 1057918098891 is 1988908197501.

It is not a de Polignac number, because 1057918098891 - 2¹ = 1057918098889 is a prime.

It is a super-2 number, since 2×1057918098891² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057918098821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82649910 + ... + 82662708.

It is an arithmetic number, because the mean of its divisors is an integer number (45040665600).

Almost surely, 2^{1057918098891} is an apocalyptic number.

1057918098891 is a deficient number, since it is larger than the sum of its proper divisors (383383200309).

1057918098891 is a wasteful number, since it uses less digits than its factorization.

1057918098891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14307.

The product of its (nonzero) digits is 13063680, while the sum is 66.

The spelling of 1057918098891 in words is "one trillion, fifty-seven billion, nine hundred eighteen million, ninety-eight thousand, eight hundred ninety-one".