42655641512 has 96 divisors (see below), whose sum is σ = 89976186720. Its totient is φ = 18801020160.

The previous prime is 42655641499. The next prime is 42655641521. The reversal of 42655641512 is 21514655624.

It is a super-2 number, since 2×42655641512² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42655641512.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63006518 + ... + 63007194.

It is an arithmetic number, because the mean of its divisors is an integer number (937251945).

Almost surely, 2^42655641512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42655641512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44988093360).

42655641512 is an abundant number, since it is smaller than the sum of its proper divisors (47320545208).

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

42655641512 is a wasteful number, since it uses less digits than its factorization.

42655641512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291 (or 1250 counting only the distinct ones).

The product of its digits is 288000, while the sum is 41.

The spelling of 42655641512 in words is "forty-two billion, six hundred fifty-five million, six hundred forty-one thousand, five hundred twelve".