427770637544 has 32 divisors (see below), whose sum is σ = 848136925440. Its totient is φ = 201937353600.

The previous prime is 427770637499. The next prime is 427770637561. The reversal of 427770637544 is 445736077724.

It is a self number, because there is not a number n which added to its sum of digits gives 427770637544.

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, 21024974 + ... + 21045309.

It is an arithmetic number, because the mean of its divisors is an integer number (26504278920).

Almost surely, 2^427770637544 is an apocalyptic number.

It is an amenable number.

427770637544 is a deficient number, since it is larger than the sum of its proper divisors (420366287896).

427770637544 is a wasteful number, since it uses less digits than its factorization.

427770637544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42070361 (or 42070357 counting only the distinct ones).

The product of its (nonzero) digits is 27659520, while the sum is 56.

The spelling of 427770637544 in words is "four hundred twenty-seven billion, seven hundred seventy million, six hundred thirty-seven thousand, five hundred forty-four".