723461520321263 has 4 divisors (see below), whose sum is σ = 730919886510240. Its totient is φ = 716003154132288.

The previous prime is 723461520321259. The next prime is 723461520321389. The reversal of 723461520321263 is 362123025164327.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 723461520321263 - 2² = 723461520321259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723461520321223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3729183094343 + ... + 3729183094536.

It is an arithmetic number, because the mean of its divisors is an integer number (182729971627560).

Almost surely, 2^{723461520321263} is an apocalyptic number.

723461520321263 is a deficient number, since it is larger than the sum of its proper divisors (7458366188977).

723461520321263 is an equidigital number, since it uses as much as digits as its factorization.

723461520321263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7458366188976.

The product of its (nonzero) digits is 2177280, while the sum is 47.

The spelling of 723461520321263 in words is "seven hundred twenty-three trillion, four hundred sixty-one billion, five hundred twenty million, three hundred twenty-one thousand, two hundred sixty-three".