7352721980 has 48 divisors (see below), whose sum is σ = 15948140544. Its totient is φ = 2844548160.

The previous prime is 7352721977. The next prime is 7352721989. The reversal of 7352721980 is 891272537.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7352721989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1872299 + ... + 1876221.

It is an arithmetic number, because the mean of its divisors is an integer number (332252928).

Almost surely, 2^7352721980 is an apocalyptic number.

It is an amenable number.

7352721980 is an abundant number, since it is smaller than the sum of its proper divisors (8595418564).

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

7352721980 is a wasteful number, since it uses less digits than its factorization.

7352721980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6986 (or 6984 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 7352721980 is about 85748.0144376533. The cubic root of 7352721980 is about 1944.5362706046.

The spelling of 7352721980 in words is "seven billion, three hundred fifty-two million, seven hundred twenty-one thousand, nine hundred eighty".