6747774873840 has 1760 divisors, whose sum is σ = 31618537284096. Its totient is φ = 1293371504640.

The previous prime is 6747774873839. The next prime is 6747774873877. The reversal of 6747774873840 is 483784777476.

6747774873840 is a `hidden beast` number, since 6 + 7 + 4 + 7 + 77 + 487 + 38 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 351 ways as a sum of consecutive naturals, for example, 4728643207 + ... + 4728644633.

Almost surely, 2^{6747774873840} is an apocalyptic number.

6747774873840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6747774873840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15809268642048).

6747774873840 is an abundant number, since it is smaller than the sum of its proper divisors (24870762410256).

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

6747774873840 is a wasteful number, since it uses less digits than its factorization.

6747774873840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501 (or 1468 counting only the distinct ones).

The product of its (nonzero) digits is 1239146496, while the sum is 72.

The spelling of 6747774873840 in words is "six trillion, seven hundred forty-seven billion, seven hundred seventy-four million, eight hundred seventy-three thousand, eight hundred forty".