271902693421 has 2 divisors, whose sum is σ = 271902693422. Its totient is φ = 271902693420.

The previous prime is 271902693389. The next prime is 271902693431. The reversal of 271902693421 is 124396209172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231278275396 + 40624418025 = 480914^2 + 201555^2 .

It is a cyclic number.

It is not a de Polignac number, because 271902693421 - 2⁵ = 271902693389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (271902693431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135951346710 + 135951346711.

It is an arithmetic number, because the mean of its divisors is an integer number (135951346711).

Almost surely, 2^271902693421 is an apocalyptic number.

It is an amenable number.

271902693421 is a deficient number, since it is larger than the sum of its proper divisors (1).

271902693421 is an equidigital number, since it uses as much as digits as its factorization.

271902693421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 271902693421 in words is "two hundred seventy-one billion, nine hundred two million, six hundred ninety-three thousand, four hundred twenty-one".