427655926780 has 12 divisors (see below), whose sum is σ = 898077446280. Its totient is φ = 171062370704.

The previous prime is 427655926777. The next prime is 427655926783. The reversal of 427655926780 is 87629556724.

It is an interprime number because it is at equal distance from previous prime (427655926777) and next prime (427655926783).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427655926783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10691398150 + ... + 10691398189.

It is an arithmetic number, because the mean of its divisors is an integer number (74839787190).

Almost surely, 2^427655926780 is an apocalyptic number.

It is an amenable number.

427655926780 is an abundant number, since it is smaller than the sum of its proper divisors (470421519500).

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

427655926780 is a wasteful number, since it uses less digits than its factorization.

427655926780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21382796348 (or 21382796346 counting only the distinct ones).

The product of its (nonzero) digits is 50803200, while the sum is 61.

The spelling of 427655926780 in words is "four hundred twenty-seven billion, six hundred fifty-five million, nine hundred twenty-six thousand, seven hundred eighty".