950399117440 has 128 divisors (see below), whose sum is σ = 2351299104000. Its totient is φ = 366909419520.

The previous prime is 950399117387. The next prime is 950399117443. The reversal of 950399117440 is 44711993059.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (950399117443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57137925 + ... + 57154555.

It is an arithmetic number, because the mean of its divisors is an integer number (18369524250).

Almost surely, 2^950399117440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 950399117440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1175649552000).

950399117440 is an abundant number, since it is smaller than the sum of its proper divisors (1400899986560).

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

950399117440 is a wasteful number, since it uses less digits than its factorization.

950399117440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19758 (or 19746 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 52.

The spelling of 950399117440 in words is "nine hundred fifty billion, three hundred ninety-nine million, one hundred seventeen thousand, four hundred forty".