415205535421 has 2 divisors, whose sum is σ = 415205535422. Its totient is φ = 415205535420.

The previous prime is 415205535413. The next prime is 415205535431. The reversal of 415205535421 is 124535502514.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 269346468196 + 145859067225 = 518986^2 + 381915^2 .

It is a cyclic number.

It is not a de Polignac number, because 415205535421 - 2³ = 415205535413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (415205535401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207602767710 + 207602767711.

It is an arithmetic number, because the mean of its divisors is an integer number (207602767711).

Almost surely, 2^415205535421 is an apocalyptic number.

It is an amenable number.

415205535421 is a deficient number, since it is larger than the sum of its proper divisors (1).

415205535421 is an equidigital number, since it uses as much as digits as its factorization.

415205535421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 415205535421 in words is "four hundred fifteen billion, two hundred five million, five hundred thirty-five thousand, four hundred twenty-one".