1865367084126 has 576 divisors, whose sum is σ = 5170705113600. Its totient is φ = 437719127040.

The previous prime is 1865367084103. The next prime is 1865367084149. The reversal of 1865367084126 is 6214807635681.

It is an interprime number because it is at equal distance from previous prime (1865367084103) and next prime (1865367084149).

It is a super-2 number, since 2×1865367084126² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 4795287940 + ... + 4795288328.

It is an arithmetic number, because the mean of its divisors is an integer number (8976918600).

Almost surely, 2^{1865367084126} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1865367084126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2585352556800).

1865367084126 is an abundant number, since it is smaller than the sum of its proper divisors (3305338029474).

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

1865367084126 is a wasteful number, since it uses less digits than its factorization.

1865367084126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 1865367084126 in words is "one trillion, eight hundred sixty-five billion, three hundred sixty-seven million, eighty-four thousand, one hundred twenty-six".