1865248122342 has 64 divisors (see below), whose sum is σ = 4135356094464. Its totient is φ = 556165770240.

The previous prime is 1865248122337. The next prime is 1865248122343. The reversal of 1865248122342 is 2432218425681.

It is a junction number, because it is equal to n+sod(n) for n = 1865248122291 and 1865248122300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1865248122343) 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, 265483 + ... + 1949609.

It is an arithmetic number, because the mean of its divisors is an integer number (64614938976).

Almost surely, 2^{1865248122342} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1865248122342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2067678047232).

1865248122342 is an abundant number, since it is smaller than the sum of its proper divisors (2270107972122).

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

1865248122342 is a wasteful number, since it uses less digits than its factorization.

1865248122342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684413.

The product of its digits is 1474560, while the sum is 48.

The spelling of 1865248122342 in words is "one trillion, eight hundred sixty-five billion, two hundred forty-eight million, one hundred twenty-two thousand, three hundred forty-two".