7743731381802 has 384 divisors, whose sum is σ = 19176665324544. Its totient is φ = 2242252191744.

The previous prime is 7743731381801. The next prime is 7743731381807. The reversal of 7743731381802 is 2081831373477.

7743731381802 is a `hidden beast` number, since 77 + 437 + 3 + 138 + 1 + 8 + 0 + 2 = 666.

It is a super-2 number, since 2×7743731381802² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7743731381801) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 22316228593 + ... + 22316228939.

It is an arithmetic number, because the mean of its divisors is an integer number (49939232616).

Almost surely, 2^{7743731381802} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7743731381802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9588332662272).

7743731381802 is an abundant number, since it is smaller than the sum of its proper divisors (11432933942742).

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

7743731381802 is a wasteful number, since it uses less digits than its factorization.

7743731381802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 54.

The spelling of 7743731381802 in words is "seven trillion, seven hundred forty-three billion, seven hundred thirty-one million, three hundred eighty-one thousand, eight hundred two".