15782027475601 has 2 divisors, whose sum is σ = 15782027475602. Its totient is φ = 15782027475600.

The previous prime is 15782027475569. The next prime is 15782027475607. The reversal of 15782027475601 is 10657472028751.

It is a Cunningham number, because it is equal to 3972660²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15782027475600 + 1 = 3972660^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 15782027475601 - 2⁵ = 15782027475569 is a prime.

It is a super-2 number, since 2×15782027475601² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15782027475607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7891013737800 + 7891013737801.

It is an arithmetic number, because the mean of its divisors is an integer number (7891013737801).

Almost surely, 2^{15782027475601} is an apocalyptic number.

It is an amenable number.

15782027475601 is a deficient number, since it is larger than the sum of its proper divisors (1).

15782027475601 is an equidigital number, since it uses as much as digits as its factorization.

15782027475601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6585600, while the sum is 55.

The spelling of 15782027475601 in words is "fifteen trillion, seven hundred eighty-two billion, twenty-seven million, four hundred seventy-five thousand, six hundred one".