7421333745 has 64 divisors (see below), whose sum is σ = 13882959360. Its totient is φ = 3315007488.

The previous prime is 7421333743. The next prime is 7421333761. The reversal of 7421333745 is 5473331247.

It is not a de Polignac number, because 7421333745 - 2¹ = 7421333743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7421333743) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1427611 + ... + 1432799.

It is an arithmetic number, because the mean of its divisors is an integer number (216921240).

Almost surely, 2^7421333745 is an apocalyptic number.

It is an amenable number.

7421333745 is a deficient number, since it is larger than the sum of its proper divisors (6461625615).

7421333745 is a wasteful number, since it uses less digits than its factorization.

7421333745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5514.

The product of its digits is 211680, while the sum is 39.

The square root of 7421333745 is about 86147.1633021076. The cubic root of 7421333745 is about 1950.5660197769.

The spelling of 7421333745 in words is "seven billion, four hundred twenty-one million, three hundred thirty-three thousand, seven hundred forty-five".