427215440619 has 66 divisors (see below), whose sum is σ = 699938920908. Its totient is φ = 258599190600.

The previous prime is 427215440611. The next prime is 427215440627. The reversal of 427215440619 is 916044512724.

427215440619 is a `hidden beast` number, since 4 + 2 + 7 + 21 + 5 + 4 + 4 + 0 + 619 = 666.

It is an interprime number because it is at equal distance from previous prime (427215440611) and next prime (427215440627).

It is not a de Polignac number, because 427215440619 - 2³ = 427215440611 is a prime.

It is a super-2 number, since 2×427215440619² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (427215440611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 65 ways as a sum of consecutive naturals, for example, 526775724 + ... + 526776534.

Almost surely, 2^427215440619 is an apocalyptic number.

427215440619 is a deficient number, since it is larger than the sum of its proper divisors (272723480289).

427215440619 is an frugal number, since it uses more digits than its factorization.

427215440619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 427215440619 in words is "four hundred twenty-seven billion, two hundred fifteen million, four hundred forty thousand, six hundred nineteen".