985475185440 has 48 divisors (see below), whose sum is σ = 3104246835648. Its totient is φ = 262793382656.

The previous prime is 985475185421. The next prime is 985475185451. The reversal of 985475185440 is 44581574589.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×985475185440² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1026536172 + ... + 1026537131.

It is an arithmetic number, because the mean of its divisors is an integer number (64671809076).

Almost surely, 2^985475185440 is an apocalyptic number.

It is an amenable number.

985475185440 is an abundant number, since it is smaller than the sum of its proper divisors (2118771650208).

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

985475185440 is a wasteful number, since it uses less digits than its factorization.

985475185440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053073321 (or 2053073313 counting only the distinct ones).

The product of its (nonzero) digits is 32256000, while the sum is 60.

The spelling of 985475185440 in words is "nine hundred eighty-five billion, four hundred seventy-five million, one hundred eighty-five thousand, four hundred forty".