72477677427 has 8 divisors (see below), whose sum is σ = 96653297664. Its totient is φ = 48310254408.

The previous prime is 72477677423. The next prime is 72477677443.

72477677427 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 72477677427 - 2² = 72477677423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72477677423) 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, 2028643 + ... + 2064060.

It is an arithmetic number, because the mean of its divisors is an integer number (12081662208).

Almost surely, 2^72477677427 is an apocalyptic number.

72477677427 is a deficient number, since it is larger than the sum of its proper divisors (24175620237).

72477677427 is a wasteful number, since it uses less digits than its factorization.

72477677427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4098609.

The product of its digits is 45177216, while the sum is 60.

The spelling of 72477677427 in words is "seventy-two billion, four hundred seventy-seven million, six hundred seventy-seven thousand, four hundred twenty-seven".