7821369547201 has 8 divisors (see below), whose sum is σ = 8940098911040. Its totient is φ = 6702987897648.

The previous prime is 7821369547151. The next prime is 7821369547207. The reversal of 7821369547201 is 1027459631287.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7821369547201 - 2²⁷ = 7821235329473 is a prime.

It is a super-2 number, since 2×7821369547201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7821369547207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86880366 + ... + 86970343.

It is an arithmetic number, because the mean of its divisors is an integer number (1117512363880).

It is a 1-persistent number, because it is pandigital, but 2⋅7821369547201 = 15642739094402 is not.

Almost surely, 2^{7821369547201} is an apocalyptic number.

It is an amenable number.

7821369547201 is a deficient number, since it is larger than the sum of its proper divisors (1118729363839).

7821369547201 is a wasteful number, since it uses less digits than its factorization.

7821369547201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173857143.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 7821369547201 in words is "seven trillion, eight hundred twenty-one billion, three hundred sixty-nine million, five hundred forty-seven thousand, two hundred one".