721774456350042 has 32 divisors (see below), whose sum is σ = 1497165347059200. Its totient is φ = 231698067341888.

The previous prime is 721774456350019. The next prime is 721774456350043. The reversal of 721774456350042 is 240053654477127.

It is not an unprimeable number, because it can be changed into a prime (721774456350043) 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, 5331717738 + ... + 5331853109.

It is an arithmetic number, because the mean of its divisors is an integer number (46786417095600).

Almost surely, 2^{721774456350042} is an apocalyptic number.

721774456350042 is an abundant number, since it is smaller than the sum of its proper divisors (775390890709158).

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

721774456350042 is a wasteful number, since it uses less digits than its factorization.

721774456350042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10663571270.

The product of its (nonzero) digits is 39513600, while the sum is 57.

The spelling of 721774456350042 in words is "seven hundred twenty-one trillion, seven hundred seventy-four billion, four hundred fifty-six million, three hundred fifty thousand, forty-two".