7725659620972 has 12 divisors (see below), whose sum is σ = 13519936895976. Its totient is φ = 3862820507840.

The previous prime is 7725659620817. The next prime is 7725659621011. The reversal of 7725659620972 is 2790269565277.

It is a super-3 number, since 3×7725659620972³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7725659620898 and 7725659620907.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251554 + ... + 3938857.

It is an arithmetic number, because the mean of its divisors is an integer number (1126661407998).

Almost surely, 2^{7725659620972} is an apocalyptic number.

It is an amenable number.

7725659620972 is a deficient number, since it is larger than the sum of its proper divisors (5794277275004).

7725659620972 is a wasteful number, since it uses less digits than its factorization.

7725659620972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4651328 (or 4651326 counting only the distinct ones).

The product of its (nonzero) digits is 200037600, while the sum is 67.

The spelling of 7725659620972 in words is "seven trillion, seven hundred twenty-five billion, six hundred fifty-nine million, six hundred twenty thousand, nine hundred seventy-two".