427738502545 has 16 divisors (see below), whose sum is σ = 547127038800. Its totient is φ = 319900432384.

The previous prime is 427738502533. The next prime is 427738502561. The reversal of 427738502545 is 545205837724.

It can be written as a sum of positive squares in 8 ways, for example, as 95004499984 + 332734002561 = 308228^2 + 576831^2 .

It is a cyclic number.

It is not a de Polignac number, because 427738502545 - 2¹³ = 427738494353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 427738502492 and 427738502501.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16873972 + ... + 16899301.

It is an arithmetic number, because the mean of its divisors is an integer number (34195439925).

Almost surely, 2^427738502545 is an apocalyptic number.

It is an amenable number.

427738502545 is a deficient number, since it is larger than the sum of its proper divisors (119388536255).

427738502545 is a wasteful number, since it uses less digits than its factorization.

427738502545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33773444.

The product of its (nonzero) digits is 9408000, while the sum is 52.

The spelling of 427738502545 in words is "four hundred twenty-seven billion, seven hundred thirty-eight million, five hundred two thousand, five hundred forty-five".