6240143459640 has 32 divisors (see below), whose sum is σ = 18720430379280. Its totient is φ = 1664038255872.

The previous prime is 6240143459621. The next prime is 6240143459657. The reversal of 6240143459640 is 469543410426.

It is a self number, because there is not a number n which added to its sum of digits gives 6240143459640.

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, 26000597629 + ... + 26000597868.

Almost surely, 2^{6240143459640} is an apocalyptic number.

6240143459640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6240143459640 is an abundant number, since it is smaller than the sum of its proper divisors (12480286919640).

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

6240143459640 is a wasteful number, since it uses less digits than its factorization.

6240143459640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52001195511 (or 52001195507 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 48.

The spelling of 6240143459640 in words is "six trillion, two hundred forty billion, one hundred forty-three million, four hundred fifty-nine thousand, six hundred forty".