7647198397140 has 48 divisors (see below), whose sum is σ = 21608597324160. Its totient is φ = 2020544161920.

The previous prime is 7647198397133. The next prime is 7647198397141. The reversal of 7647198397140 is 417938917467.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7647198397141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 584641656 + ... + 584654735.

It is an arithmetic number, because the mean of its divisors is an integer number (450179110920).

Almost surely, 2^{7647198397140} is an apocalyptic number.

It is an amenable number.

7647198397140 is an abundant number, since it is smaller than the sum of its proper divisors (13961398927020).

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

7647198397140 is a wasteful number, since it uses less digits than its factorization.

7647198397140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169296512 (or 1169296510 counting only the distinct ones).

The product of its (nonzero) digits is 64012032, while the sum is 66.

The spelling of 7647198397140 in words is "seven trillion, six hundred forty-seven billion, one hundred ninety-eight million, three hundred ninety-seven thousand, one hundred forty".