1867630616240 has 160 divisors (see below), whose sum is σ = 4436512045056. Its totient is φ = 731035468800.

The previous prime is 1867630616219. The next prime is 1867630616317. The reversal of 1867630616240 is 426160367681.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 488522969 + ... + 488526791.

Almost surely, 2^{1867630616240} is an apocalyptic number.

1867630616240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1867630616240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2218256022528).

1867630616240 is an abundant number, since it is smaller than the sum of its proper divisors (2568881428816).

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

1867630616240 is a wasteful number, since it uses less digits than its factorization.

1867630616240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4627 (or 4621 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 1867630616240 in words is "one trillion, eight hundred sixty-seven billion, six hundred thirty million, six hundred sixteen thousand, two hundred forty".