427378909695 has 16 divisors (see below), whose sum is σ = 683849921760. Its totient is φ = 227920863104.

The previous prime is 427378909621. The next prime is 427378909729. The reversal of 427378909695 is 596909873724.

It is a cyclic number.

It is not a de Polignac number, because 427378909695 - 2⁸ = 427378909439 is a prime.

It is a super-3 number, since 3×427378909695³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

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, 664860 + ... + 1138769.

It is an arithmetic number, because the mean of its divisors is an integer number (42740620110).

Almost surely, 2^427378909695 is an apocalyptic number.

427378909695 is a deficient number, since it is larger than the sum of its proper divisors (256471012065).

427378909695 is a wasteful number, since it uses less digits than its factorization.

427378909695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1819434.

The product of its (nonzero) digits is 205752960, while the sum is 69.

The spelling of 427378909695 in words is "four hundred twenty-seven billion, three hundred seventy-eight million, nine hundred nine thousand, six hundred ninety-five".