1440078721850 has 96 divisors (see below), whose sum is σ = 2844011471616. Its totient is φ = 540638950400.

The previous prime is 1440078721831. The next prime is 1440078721871. The reversal of 1440078721850 is 581278700441.

It is a junction number, because it is equal to n+sod(n) for n = 1440078721795 and 1440078721804.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 830973584 + ... + 830975316.

It is an arithmetic number, because the mean of its divisors is an integer number (29625119496).

Almost surely, 2^{1440078721850} is an apocalyptic number.

1440078721850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1440078721850 is a deficient number, since it is larger than the sum of its proper divisors (1403932749766).

1440078721850 is a wasteful number, since it uses less digits than its factorization.

1440078721850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3920 (or 3915 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 47.

The spelling of 1440078721850 in words is "one trillion, four hundred forty billion, seventy-eight million, seven hundred twenty-one thousand, eight hundred fifty".