245811118542 has 64 divisors (see below), whose sum is σ = 543890280960. Its totient is φ = 73442448000.

The previous prime is 245811118541. The next prime is 245811118547.

245811118542 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 245811118494 and 245811118503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245811118541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1477792 + ... + 1635692.

It is an arithmetic number, because the mean of its divisors is an integer number (8498285640).

Almost surely, 2^245811118542 is an apocalyptic number.

245811118542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 245811118542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271945140480).

245811118542 is an abundant number, since it is smaller than the sum of its proper divisors (298079162418).

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

245811118542 is a wasteful number, since it uses less digits than its factorization.

245811118542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158249.

The product of its digits is 102400, while the sum is 42.

The spelling of 245811118542 in words is "two hundred forty-five billion, eight hundred eleven million, one hundred eighteen thousand, five hundred forty-two".