721468025108 has 24 divisors (see below), whose sum is σ = 1284607836960. Its totient is φ = 354443303520.

The previous prime is 721468025107. The next prime is 721468025123. The reversal of 721468025108 is 801520864127.

It is a super-2 number, since 2×721468025108² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (721468025107) 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, 285491 + ... + 1234682.

It is an arithmetic number, because the mean of its divisors is an integer number (53525326540).

Almost surely, 2^721468025108 is an apocalyptic number.

It is an amenable number.

721468025108 is a deficient number, since it is larger than the sum of its proper divisors (563139811852).

721468025108 is a wasteful number, since it uses less digits than its factorization.

721468025108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522247 (or 1522245 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 721468025108 in words is "seven hundred twenty-one billion, four hundred sixty-eight million, twenty-five thousand, one hundred eight".