7421734387684 has 12 divisors (see below), whose sum is σ = 12988095410304. Its totient is φ = 3710849984744.

The previous prime is 7421734387621. The next prime is 7421734387687. The reversal of 7421734387684 is 4867834371247.

It is not an unprimeable number, because it can be changed into a prime (7421734387687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3306304 + ... + 5076919.

It is an arithmetic number, because the mean of its divisors is an integer number (1082341284192).

Almost surely, 2^{7421734387684} is an apocalyptic number.

It is an amenable number.

7421734387684 is a deficient number, since it is larger than the sum of its proper divisors (5566361022620).

7421734387684 is a wasteful number, since it uses less digits than its factorization.

7421734387684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8604554 (or 8604552 counting only the distinct ones).

The product of its digits is 151732224, while the sum is 64.

The spelling of 7421734387684 in words is "seven trillion, four hundred twenty-one billion, seven hundred thirty-four million, three hundred eighty-seven thousand, six hundred eighty-four".