721074741204 has 48 divisors (see below), whose sum is σ = 1721731511808. Its totient is φ = 234755471328.

The previous prime is 721074741187. The next prime is 721074741209. The reversal of 721074741204 is 402147470127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (721074741209) 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, 14581729 + ... + 14631095.

It is an arithmetic number, because the mean of its divisors is an integer number (35869406496).

Almost surely, 2^721074741204 is an apocalyptic number.

It is an amenable number.

721074741204 is an abundant number, since it is smaller than the sum of its proper divisors (1000656770604).

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

721074741204 is a wasteful number, since it uses less digits than its factorization.

721074741204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77724 (or 77722 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 39.

The spelling of 721074741204 in words is "seven hundred twenty-one billion, seventy-four million, seven hundred forty-one thousand, two hundred four".