72643206146003 has 4 divisors (see below), whose sum is σ = 72703093374048. Its totient is φ = 72583318917960.

The previous prime is 72643206145943. The next prime is 72643206146011. The reversal of 72643206146003 is 30064160234627.

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 72643206146003 - 2²² = 72643201951699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72643206146023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29943612203 + ... + 29943614628.

It is an arithmetic number, because the mean of its divisors is an integer number (18175773343512).

Almost surely, 2^{72643206146003} is an apocalyptic number.

72643206146003 is a deficient number, since it is larger than the sum of its proper divisors (59887228045).

72643206146003 is a wasteful number, since it uses less digits than its factorization.

72643206146003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59887228044.

The product of its (nonzero) digits is 870912, while the sum is 44.

The spelling of 72643206146003 in words is "seventy-two trillion, six hundred forty-three billion, two hundred six million, one hundred forty-six thousand, three".