72461347453 has 4 divisors (see below), whose sum is σ = 79048742688. Its totient is φ = 65873952220.

The previous prime is 72461347433. The next prime is 72461347471. The reversal of 72461347453 is 35474316427.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72461347453 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 (72461347433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3293697601 + ... + 3293697622.

It is an arithmetic number, because the mean of its divisors is an integer number (19762185672).

Almost surely, 2^72461347453 is an apocalyptic number.

It is an amenable number.

72461347453 is a deficient number, since it is larger than the sum of its proper divisors (6587395235).

72461347453 is a wasteful number, since it uses less digits than its factorization.

72461347453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6587395234.

The product of its digits is 1693440, while the sum is 46.

It can be divided in two parts, 72461 and 347453, that added together give a palindrome (419914).

The spelling of 72461347453 in words is "seventy-two billion, four hundred sixty-one million, three hundred forty-seven thousand, four hundred fifty-three".