427872974401 has 4 divisors (see below), whose sum is σ = 429709339332. Its totient is φ = 426036609472.

The previous prime is 427872974371. The next prime is 427872974411. The reversal of 427872974401 is 104479278724.

It is a Cunningham number, because it is equal to 654120²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 86892890176 + 340980084225 = 294776^2 + 583935^2 .

It is a cyclic number.

It is not a de Polignac number, because 427872974401 - 2⁵ = 427872974369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427872974411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918182116 + ... + 918182581.

It is an arithmetic number, because the mean of its divisors is an integer number (107427334833).

Almost surely, 2^427872974401 is an apocalyptic number.

It is an amenable number.

427872974401 is a deficient number, since it is larger than the sum of its proper divisors (1836364931).

427872974401 is a wasteful number, since it uses less digits than its factorization.

427872974401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836364930.

The product of its (nonzero) digits is 6322176, while the sum is 55.

The spelling of 427872974401 in words is "four hundred twenty-seven billion, eight hundred seventy-two million, nine hundred seventy-four thousand, four hundred one".