427380440680 has 32 divisors (see below), whose sum is σ = 962570580840. Its totient is φ = 170780693760.

The previous prime is 427380440653. The next prime is 427380440723. The reversal of 427380440680 is 86044083724.

It can be written as a sum of positive squares in 4 ways, for example, as 409505285476 + 17875155204 = 639926^2 + 133698^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 427380440680.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5318451 + ... + 5398210.

Almost surely, 2^427380440680 is an apocalyptic number.

427380440680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

427380440680 is an abundant number, since it is smaller than the sum of its proper divisors (535190140160).

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

427380440680 is a wasteful number, since it uses less digits than its factorization.

427380440680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10717669 (or 10717665 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 46.

The spelling of 427380440680 in words is "four hundred twenty-seven billion, three hundred eighty million, four hundred forty thousand, six hundred eighty".