7142747785240 has 64 divisors (see below), whose sum is σ = 16918897356000. Its totient is φ = 2706427376640.

The previous prime is 7142747785219. The next prime is 7142747785253. The reversal of 7142747785240 is 425877472417.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6449406 + ... + 7475314.

Almost surely, 2^{7142747785240} is an apocalyptic number.

It is an amenable number.

7142747785240 is an abundant number, since it is smaller than the sum of its proper divisors (9776149570760).

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

7142747785240 is a wasteful number, since it uses less digits than its factorization.

7142747785240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035100 (or 1035096 counting only the distinct ones).

The product of its (nonzero) digits is 24586240, while the sum is 58.

The spelling of 7142747785240 in words is "seven trillion, one hundred forty-two billion, seven hundred forty-seven million, seven hundred eighty-five thousand, two hundred forty".