427378909764 has 48 divisors (see below), whose sum is σ = 1029522722816. Its totient is φ = 137845821600.

The previous prime is 427378909729. The next prime is 427378909801. The reversal of 427378909764 is 467909873724.

It is a super-2 number, since 2×427378909764² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 427378909695 and 427378909704.

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, 2876379 + ... + 3021309.

Almost surely, 2^427378909764 is an apocalyptic number.

It is an amenable number.

427378909764 is an abundant number, since it is smaller than the sum of its proper divisors (602143813052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

427378909764 is a wasteful number, since it uses less digits than its factorization.

427378909764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152896 (or 152894 counting only the distinct ones).

The product of its (nonzero) digits is 128024064, while the sum is 66.

The spelling of 427378909764 in words is "four hundred twenty-seven billion, three hundred seventy-eight million, nine hundred nine thousand, seven hundred sixty-four".