4531157023446 has 96 divisors (see below), whose sum is σ = 10781400913920. Its totient is φ = 1421355724416.

The previous prime is 4531157023441. The next prime is 4531157023447. The reversal of 4531157023446 is 6443207511354.

4531157023446 is a `hidden beast` number, since 4 + 5 + 3 + 1 + 1 + 570 + 2 + 34 + 46 = 666.

It is a super-2 number, since 2×4531157023446² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4531157023441) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72996795 + ... + 73058841.

It is an arithmetic number, because the mean of its divisors is an integer number (112306259520).

Almost surely, 2^{4531157023446} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4531157023446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5390700456960).

4531157023446 is an abundant number, since it is smaller than the sum of its proper divisors (6250243890474).

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

4531157023446 is a wasteful number, since it uses less digits than its factorization.

4531157023446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70920 (or 70908 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 4531157023446 in words is "four trillion, five hundred thirty-one billion, one hundred fifty-seven million, twenty-three thousand, four hundred forty-six".