743343891072 has 384 divisors, whose sum is σ = 2169898632000. Its totient is φ = 225161330688.

The previous prime is 743343891023. The next prime is 743343891089. The reversal of 743343891072 is 270198343347.

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×743343891072² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 719596668 + ... + 719597700.

Almost surely, 2^743343891072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 743343891072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1084949316000).

743343891072 is an abundant number, since it is smaller than the sum of its proper divisors (1426554740928).

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

743343891072 is a wasteful number, since it uses less digits than its factorization.

743343891072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296 (or 1265 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 51.

The spelling of 743343891072 in words is "seven hundred forty-three billion, three hundred forty-three million, eight hundred ninety-one thousand, seventy-two".