427505956919 has 8 divisors (see below), whose sum is σ = 437957083872. Its totient is φ = 417055980160.

The previous prime is 427505956903. The next prime is 427505956951. The reversal of 427505956919 is 919659505724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 427505956919 - 2⁴ = 427505956903 is a prime.

It is a super-5 number, since 5×427505956919⁵ (a number of 59 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427505956819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 490307 + ... + 1046619.

It is an arithmetic number, because the mean of its divisors is an integer number (54744635484).

Almost surely, 2^427505956919 is an apocalyptic number.

427505956919 is a deficient number, since it is larger than the sum of its proper divisors (10451126953).

427505956919 is a wasteful number, since it uses less digits than its factorization.

427505956919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575097.

The product of its (nonzero) digits is 30618000, while the sum is 62.

The spelling of 427505956919 in words is "four hundred twenty-seven billion, five hundred five million, nine hundred fifty-six thousand, nine hundred nineteen".