87405201191293 has 2 divisors, whose sum is σ = 87405201191294. Its totient is φ = 87405201191292.

The previous prime is 87405201191179. The next prime is 87405201191467. The reversal of 87405201191293 is 39219110250478.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79941087596484 + 7464113594809 = 8940978^2 + 2732053^2 .

It is a cyclic number.

It is not a de Polignac number, because 87405201191293 - 2⁹ = 87405201190781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87405201191293.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87405201191593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43702600595646 + 43702600595647.

It is an arithmetic number, because the mean of its divisors is an integer number (43702600595647).

Almost surely, 2^{87405201191293} is an apocalyptic number.

It is an amenable number.

87405201191293 is a deficient number, since it is larger than the sum of its proper divisors (1).

87405201191293 is an equidigital number, since it uses as much as digits as its factorization.

87405201191293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The spelling of 87405201191293 in words is "eighty-seven trillion, four hundred five billion, two hundred one million, one hundred ninety-one thousand, two hundred ninety-three".