857153127748 has 6 divisors (see below), whose sum is σ = 1500017973566. Its totient is φ = 428576563872.

The previous prime is 857153127737. The next prime is 857153127827. The reversal of 857153127748 is 847721351758.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 475021451524 + 382131676224 = 689218^2 + 618168^2 .

It is a super-2 number, since 2×857153127748² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 857153127692 and 857153127701.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107144140965 + ... + 107144140972.

Almost surely, 2^857153127748 is an apocalyptic number.

It is an amenable number.

857153127748 is a deficient number, since it is larger than the sum of its proper divisors (642864845818).

857153127748 is a wasteful number, since it uses less digits than its factorization.

857153127748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214288281941 (or 214288281939 counting only the distinct ones).

The product of its digits is 13171200, while the sum is 58.

The spelling of 857153127748 in words is "eight hundred fifty-seven billion, one hundred fifty-three million, one hundred twenty-seven thousand, seven hundred forty-eight".