1521472226479 has 2 divisors, whose sum is σ = 1521472226480. Its totient is φ = 1521472226478.

The previous prime is 1521472226401. The next prime is 1521472226489. The reversal of 1521472226479 is 9746222741251.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1521472226479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1521472226489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 760736113239 + 760736113240.

It is an arithmetic number, because the mean of its divisors is an integer number (760736113240).

Almost surely, 2^{1521472226479} is an apocalyptic number.

1521472226479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1521472226479 is an equidigital number, since it uses as much as digits as its factorization.

1521472226479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3386880, while the sum is 52.

The spelling of 1521472226479 in words is "one trillion, five hundred twenty-one billion, four hundred seventy-two million, two hundred twenty-six thousand, four hundred seventy-nine".