1186257226057 has 4 divisors (see below), whose sum is σ = 1194218684100. Its totient is φ = 1178295768016.

The previous prime is 1186257226003. The next prime is 1186257226079. The reversal of 1186257226057 is 7506227526811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 554214735936 + 632042490121 = 744456^2 + 795011^2 .

It is a cyclic number.

It is not a de Polignac number, because 1186257226057 - 2⁷ = 1186257225929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1186257225995 and 1186257226013.

It is not an unprimeable number, because it can be changed into a prime (1186257221057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3980728798 + ... + 3980729095.

It is an arithmetic number, because the mean of its divisors is an integer number (298554671025).

Almost surely, 2^{1186257226057} is an apocalyptic number.

It is an amenable number.

1186257226057 is a deficient number, since it is larger than the sum of its proper divisors (7961458043).

1186257226057 is an equidigital number, since it uses as much as digits as its factorization.

1186257226057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7961458042.

The product of its (nonzero) digits is 2822400, while the sum is 52.

The spelling of 1186257226057 in words is "one trillion, one hundred eighty-six billion, two hundred fifty-seven million, two hundred twenty-six thousand, fifty-seven".