726462051242 has 4 divisors (see below), whose sum is σ = 1089693076866. Its totient is φ = 363231025620.

The previous prime is 726462051239. The next prime is 726462051251. The reversal of 726462051242 is 242150264627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242150264627 = 190313 ⋅1272379.

It can be written as a sum of positive squares in only one way, i.e., 710819296201 + 15642755041 = 843101^2 + 125071^2 .

It is a super-2 number, since 2×726462051242² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 726462051242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181615512809 + ... + 181615512812.

Almost surely, 2^726462051242 is an apocalyptic number.

726462051242 is a deficient number, since it is larger than the sum of its proper divisors (363231025624).

726462051242 is a wasteful number, since it uses less digits than its factorization.

726462051242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363231025623.

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 726462051242 in words is "seven hundred twenty-six billion, four hundred sixty-two million, fifty-one thousand, two hundred forty-two".