72400341547 has 8 divisors (see below), whose sum is σ = 74034258480. Its totient is φ = 70779984480.

The previous prime is 72400341509. The next prime is 72400341569. The reversal of 72400341547 is 74514300427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72400341547 is a prime.

It is a super-5 number, since 5×72400341547⁵ (a number of 55 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72400341847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3379168 + ... + 3400525.

It is an arithmetic number, because the mean of its divisors is an integer number (9254282310).

Almost surely, 2^72400341547 is an apocalyptic number.

72400341547 is a deficient number, since it is larger than the sum of its proper divisors (1633916933).

72400341547 is a wasteful number, since it uses less digits than its factorization.

72400341547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6779933.

The product of its (nonzero) digits is 94080, while the sum is 37.

The spelling of 72400341547 in words is "seventy-two billion, four hundred million, three hundred forty-one thousand, five hundred forty-seven".