42221632464 has 120 divisors (see below), whose sum is σ = 133062269184. Its totient is φ = 12381696000.

The previous prime is 42221632423. The next prime is 42221632483. The reversal of 42221632464 is 46423612224.

It is a super-2 number, since 2×42221632464² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 380817 + ... + 479024.

Almost surely, 2^42221632464 is an apocalyptic number.

42221632464 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42221632464 is an abundant number, since it is smaller than the sum of its proper divisors (90840636720).

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

42221632464 is a wasteful number, since it uses less digits than its factorization.

42221632464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859897 (or 859888 counting only the distinct ones).

The product of its digits is 110592, while the sum is 36.

The spelling of 42221632464 in words is "forty-two billion, two hundred twenty-one million, six hundred thirty-two thousand, four hundred sixty-four".