623543112541542 has 32 divisors (see below), whose sum is σ = 1312723759392000. Its totient is φ = 196908138749088.

The previous prime is 623543112541487. The next prime is 623543112541553. The reversal of 623543112541542 is 245145211345326.

It is a happy number.

It is a super-2 number, since 2×623543112541542² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 623543112541491 and 623543112541500.

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, 128767959 + ... + 133522557.

It is an arithmetic number, because the mean of its divisors is an integer number (41022617481000).

Almost surely, 2^{623543112541542} is an apocalyptic number.

623543112541542 is an abundant number, since it is smaller than the sum of its proper divisors (689180646850458).

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

623543112541542 is a wasteful number, since it uses less digits than its factorization.

623543112541542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5905020.

The product of its digits is 3456000, while the sum is 48.

Adding to 623543112541542 its reverse (245145211345326), we get a palindrome (868688323886868).

The spelling of 623543112541542 in words is "six hundred twenty-three trillion, five hundred forty-three billion, one hundred twelve million, five hundred forty-one thousand, five hundred forty-two".