7421144766 has 96 divisors (see below), whose sum is σ = 17784328320. Its totient is φ = 2057275584.

The previous prime is 7421144743. The next prime is 7421144767. The reversal of 7421144766 is 6674411247.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7421144767) 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, 1982925 + ... + 1986663.

It is an arithmetic number, because the mean of its divisors is an integer number (185253420).

Almost surely, 2^7421144766 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7421144766, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8892164160).

7421144766 is an abundant number, since it is smaller than the sum of its proper divisors (10363183554).

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

7421144766 is a wasteful number, since it uses less digits than its factorization.

7421144766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3958 (or 3951 counting only the distinct ones).

The product of its digits is 225792, while the sum is 42.

The square root of 7421144766 is about 86146.0664569196. The cubic root of 7421144766 is about 1950.5494630430.

The spelling of 7421144766 in words is "seven billion, four hundred twenty-one million, one hundred forty-four thousand, seven hundred sixty-six".