4891158140657 has 16 divisors (see below), whose sum is σ = 5035239624960. Its totient is φ = 4747714446528.

The previous prime is 4891158140621. The next prime is 4891158140669. The reversal of 4891158140657 is 7560418511984.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4891158140657 - 2³⁰ = 4890084398833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4891158140596 and 4891158140605.

It is not an unprimeable number, because it can be changed into a prime (4891158140677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29337908 + ... + 29504154.

It is an arithmetic number, because the mean of its divisors is an integer number (314702476560).

Almost surely, 2^{4891158140657} is an apocalyptic number.

It is an amenable number.

4891158140657 is a deficient number, since it is larger than the sum of its proper divisors (144081484303).

4891158140657 is a wasteful number, since it uses less digits than its factorization.

4891158140657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168160.

The product of its (nonzero) digits is 9676800, while the sum is 59.

The spelling of 4891158140657 in words is "four trillion, eight hundred ninety-one billion, one hundred fifty-eight million, one hundred forty thousand, six hundred fifty-seven".