731069724490 has 64 divisors (see below), whose sum is σ = 1542684890880. Its totient is φ = 244207388160.

The previous prime is 731069724487. The next prime is 731069724521. The reversal of 731069724490 is 94427960137.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1948584 + ... + 2293276.

It is an arithmetic number, because the mean of its divisors is an integer number (24104451420).

Almost surely, 2^731069724490 is an apocalyptic number.

731069724490 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

731069724490 is an abundant number, since it is smaller than the sum of its proper divisors (811615166390).

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

731069724490 is a wasteful number, since it uses less digits than its factorization.

731069724490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345487.

The product of its (nonzero) digits is 2286144, while the sum is 52.

The spelling of 731069724490 in words is "seven hundred thirty-one billion, sixty-nine million, seven hundred twenty-four thousand, four hundred ninety".