1257086704050 has 36 divisors (see below), whose sum is σ = 3377372946090. Its totient is φ = 335223120960.

The previous prime is 1257086704037. The next prime is 1257086704051. The reversal of 1257086704050 is 504076807521.

1257086704050 is a `hidden beast` number, since 1 + 2 + 570 + 8 + 6 + 70 + 4 + 0 + 5 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 543232383849 + 713854320201 = 737043^2 + 844899^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 1257086703987 and 1257086704005.

It is not an unprimeable number, because it can be changed into a prime (1257086704051) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1396762555 + ... + 1396763454.

Almost surely, 2^{1257086704050} is an apocalyptic number.

1257086704050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1257086704050 is an abundant number, since it is smaller than the sum of its proper divisors (2120286242040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1257086704050 is a wasteful number, since it uses less digits than its factorization.

1257086704050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2793526027 (or 2793526019 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 1257086704050 in words is "one trillion, two hundred fifty-seven billion, eighty-six million, seven hundred four thousand, fifty".