7451394964992 has 400 divisors, whose sum is σ = 25539304665600. Its totient is φ = 2139153960960.

The previous prime is 7451394964963. The next prime is 7451394965017. The reversal of 7451394964992 is 2994694931547.

It is a happy number.

7451394964992 is a `hidden beast` number, since 7 + 4 + 5 + 1 + 3 + 9 + 496 + 49 + 92 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 7451394964992.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8237809 + ... + 9097487.

It is an arithmetic number, because the mean of its divisors is an integer number (63848261664).

Almost surely, 2^{7451394964992} is an apocalyptic number.

7451394964992 is a gapful number since it is divisible by the number (72) 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 7451394964992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12769652332800).

7451394964992 is an abundant number, since it is smaller than the sum of its proper divisors (18087909700608).

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

7451394964992 is a wasteful number, since it uses less digits than its factorization.

7451394964992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859739 (or 859714 counting only the distinct ones).

The product of its digits is 529079040, while the sum is 72.

The spelling of 7451394964992 in words is "seven trillion, four hundred fifty-one billion, three hundred ninety-four million, nine hundred sixty-four thousand, nine hundred ninety-two".