42491699619424 has 96 divisors (see below), whose sum is σ = 92265286450176. Its totient is φ = 19102368069120.

The previous prime is 42491699619371. The next prime is 42491699619449.

42491699619424 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21932742 + ... + 23791354.

It is an arithmetic number, because the mean of its divisors is an integer number (961096733856).

Almost surely, 2^{42491699619424} is an apocalyptic number.

42491699619424 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42491699619424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46132643225088).

42491699619424 is an abundant number, since it is smaller than the sum of its proper divisors (49773586830752).

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

42491699619424 is a wasteful number, since it uses less digits than its factorization.

42491699619424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1859348 (or 1859340 counting only the distinct ones).

The product of its digits is 241864704, while the sum is 70.

The spelling of 42491699619424 in words is "forty-two trillion, four hundred ninety-one billion, six hundred ninety-nine million, six hundred nineteen thousand, four hundred twenty-four".