2145757127457 has 8 divisors (see below), whose sum is σ = 2867269919776. Its totient is φ = 1427374543392.

The previous prime is 2145757127447. The next prime is 2145757127489. The reversal of 2145757127457 is 7547217575412.

It is a happy number.

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

It is not a de Polignac number, because 2145757127457 - 2⁷ = 2145757127329 is a prime.

It is a super-2 number, since 2×2145757127457² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2145757127397 and 2145757127406.

It is not an unprimeable number, because it can be changed into a prime (2145757127447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 782550463 + ... + 782553204.

It is an arithmetic number, because the mean of its divisors is an integer number (358408739972).

Almost surely, 2^{2145757127457} is an apocalyptic number.

It is an amenable number.

2145757127457 is a deficient number, since it is larger than the sum of its proper divisors (721512792319).

2145757127457 is a wasteful number, since it uses less digits than its factorization.

2145757127457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565104127.

The product of its digits is 19208000, while the sum is 57.

The spelling of 2145757127457 in words is "two trillion, one hundred forty-five billion, seven hundred fifty-seven million, one hundred twenty-seven thousand, four hundred fifty-seven".