2157071544763 has 8 divisors (see below), whose sum is σ = 2193813903600. Its totient is φ = 2120335246848.

The previous prime is 2157071544721. The next prime is 2157071544779. The reversal of 2157071544763 is 3674451707512.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2157071544763 is a prime.

It is a super-2 number, since 2×2157071544763² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2157071544763.

It is not an unprimeable number, because it can be changed into a prime (2157071944763) 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, 794478 + ... + 2223811.

It is an arithmetic number, because the mean of its divisors is an integer number (274226737950).

Almost surely, 2^{2157071544763} is an apocalyptic number.

2157071544763 is a deficient number, since it is larger than the sum of its proper divisors (36742358837).

2157071544763 is a wasteful number, since it uses less digits than its factorization.

2157071544763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030461.

The product of its (nonzero) digits is 4939200, while the sum is 52.

The spelling of 2157071544763 in words is "two trillion, one hundred fifty-seven billion, seventy-one million, five hundred forty-four thousand, seven hundred sixty-three".