72513147067 has 4 divisors (see below), whose sum is σ = 72993366736. Its totient is φ = 72032927400.

The previous prime is 72513147061. The next prime is 72513147073. The reversal of 72513147067 is 76074131527.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (72513147061) and next prime (72513147073).

It is a cyclic number.

It is not a de Polignac number, because 72513147067 - 2⁷ = 72513146939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72513147061) 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, 240109608 + ... + 240109909.

It is an arithmetic number, because the mean of its divisors is an integer number (18248341684).

Almost surely, 2^72513147067 is an apocalyptic number.

72513147067 is a deficient number, since it is larger than the sum of its proper divisors (480219669).

72513147067 is a wasteful number, since it uses less digits than its factorization.

72513147067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480219668.

The product of its (nonzero) digits is 246960, while the sum is 43.

The spelling of 72513147067 in words is "seventy-two billion, five hundred thirteen million, one hundred forty-seven thousand, sixty-seven".