7445196491540 has 24 divisors (see below), whose sum is σ = 15635108077512. Its totient is φ = 2978041368960.

The previous prime is 7445196491539. The next prime is 7445196491573. The reversal of 7445196491540 is 451946915447.

It can be written as a sum of positive squares in 4 ways, for example, as 4621734631684 + 2823461859856 = 2149822^2 + 1680316^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7445196491540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 657599 + ... + 3914438.

It is an arithmetic number, because the mean of its divisors is an integer number (651462836563).

Almost surely, 2^{7445196491540} is an apocalyptic number.

It is an amenable number.

7445196491540 is an abundant number, since it is smaller than the sum of its proper divisors (8189911585972).

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

7445196491540 is a wasteful number, since it uses less digits than its factorization.

7445196491540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4653467 (or 4653465 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 59.

The spelling of 7445196491540 in words is "seven trillion, four hundred forty-five billion, one hundred ninety-six million, four hundred ninety-one thousand, five hundred forty".