7421528314388 has 12 divisors (see below), whose sum is σ = 13016093972532. Its totient is φ = 3702644322240.

The previous prime is 7421528314351. The next prime is 7421528314393. The reversal of 7421528314388 is 8834138251247.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3213565340164 + 4207962974224 = 1792642^2 + 2051332^2 .

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2029956683 + ... + 2029960338.

It is an arithmetic number, because the mean of its divisors is an integer number (1084674497711).

Almost surely, 2^{7421528314388} is an apocalyptic number.

It is an amenable number.

7421528314388 is a deficient number, since it is larger than the sum of its proper divisors (5594565658144).

7421528314388 is a wasteful number, since it uses less digits than its factorization.

7421528314388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4059917482 (or 4059917480 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 56.

The spelling of 7421528314388 in words is "seven trillion, four hundred twenty-one billion, five hundred twenty-eight million, three hundred fourteen thousand, three hundred eighty-eight".