731426544057 has 16 divisors (see below), whose sum is σ = 1098212290560. Its totient is φ = 428989174800.

The previous prime is 731426544053. The next prime is 731426544073. The reversal of 731426544057 is 750445624137.

It is not a de Polignac number, because 731426544057 - 2² = 731426544053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 731426543997 and 731426544015.

It is not an unprimeable number, because it can be changed into a prime (731426544053) 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, 357489957 + ... + 357492002.

It is an arithmetic number, because the mean of its divisors is an integer number (68638268160).

Almost surely, 2^731426544057 is an apocalyptic number.

It is an amenable number.

731426544057 is a deficient number, since it is larger than the sum of its proper divisors (366785746503).

731426544057 is a wasteful number, since it uses less digits than its factorization.

731426544057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714982004.

The product of its (nonzero) digits is 2822400, while the sum is 48.

The spelling of 731426544057 in words is "seven hundred thirty-one billion, four hundred twenty-six million, five hundred forty-four thousand, fifty-seven".