357213327227557 has 2 divisors, whose sum is σ = 357213327227558. Its totient is φ = 357213327227556.

The previous prime is 357213327227507. The next prime is 357213327227567. The reversal of 357213327227557 is 755722723312753.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 307721553496036 + 49491773731521 = 17541994^2 + 7035039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-357213327227557 is a prime.

It is a super-2 number, since 2×357213327227557² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 357213327227495 and 357213327227504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (357213327227507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178606663613778 + 178606663613779.

It is an arithmetic number, because the mean of its divisors is an integer number (178606663613779).

Almost surely, 2^{357213327227557} is an apocalyptic number.

It is an amenable number.

357213327227557 is a deficient number, since it is larger than the sum of its proper divisors (1).

357213327227557 is an equidigital number, since it uses as much as digits as its factorization.

357213327227557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129654000, while the sum is 61.

The spelling of 357213327227557 in words is "three hundred fifty-seven trillion, two hundred thirteen billion, three hundred twenty-seven million, two hundred twenty-seven thousand, five hundred fifty-seven".