901478874169 has 2 divisors, whose sum is σ = 901478874170. Its totient is φ = 901478874168.

The previous prime is 901478874091. The next prime is 901478874181. The reversal of 901478874169 is 961478874109.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 659181610000 + 242297264169 = 811900^2 + 492237^2 .

It is a cyclic number.

It is not a de Polignac number, because 901478874169 - 2¹³ = 901478865977 is a prime.

It is a super-2 number, since 2×901478874169² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 901478874169.

It is not a weakly prime, because it can be changed into another prime (901478874199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450739437084 + 450739437085.

It is an arithmetic number, because the mean of its divisors is an integer number (450739437085).

Almost surely, 2^901478874169 is an apocalyptic number.

It is an amenable number.

901478874169 is a deficient number, since it is larger than the sum of its proper divisors (1).

901478874169 is an equidigital number, since it uses as much as digits as its factorization.

901478874169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24385536, while the sum is 64.

The spelling of 901478874169 in words is "nine hundred one billion, four hundred seventy-eight million, eight hundred seventy-four thousand, one hundred sixty-nine".