7275373903872 has 420 divisors, whose sum is σ = 23099383951056. Its totient is φ = 2282406543360.

The previous prime is 7275373903859. The next prime is 7275373903879. The reversal of 7275373903872 is 2783093735727.

7275373903872 is a `hidden beast` number, since 7 + 2 + 7 + 537 + 3 + 90 + 3 + 8 + 7 + 2 = 666.

It is a super-2 number, since 2×7275373903872² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7275373903879) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 203028997 + ... + 203064827.

Almost surely, 2^{7275373903872} is an apocalyptic number.

7275373903872 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 7275373903872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11549691975528).

7275373903872 is an abundant number, since it is smaller than the sum of its proper divisors (15824010047184).

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

7275373903872 is an frugal number, since it uses more digits than its factorization.

7275373903872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35894 (or 35853 counting only the distinct ones).

The product of its (nonzero) digits is 93350880, while the sum is 63.

The spelling of 7275373903872 in words is "seven trillion, two hundred seventy-five billion, three hundred seventy-three million, nine hundred three thousand, eight hundred seventy-two".