611401200450 has 96 divisors (see below), whose sum is σ = 1599685113600. Its totient is φ = 154110265920.

The previous prime is 611401200419. The next prime is 611401200451. The reversal of 611401200450 is 54002104116.

It is a happy number.

611401200450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×611401200450² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 611401200450.

It is not an unprimeable number, because it can be changed into a prime (611401200451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1020421 + ... + 1504679.

It is an arithmetic number, because the mean of its divisors is an integer number (16663386600).

Almost surely, 2^611401200450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 611401200450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (799842556800).

611401200450 is an abundant number, since it is smaller than the sum of its proper divisors (988283913150).

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

611401200450 is a wasteful number, since it uses less digits than its factorization.

611401200450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484736 (or 484731 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 611401200450 its reverse (54002104116), we get a palindrome (665403304566).

The spelling of 611401200450 in words is "six hundred eleven billion, four hundred one million, two hundred thousand, four hundred fifty".