72177725862147 has 8 divisors (see below), whose sum is σ = 96237014169280. Its totient is φ = 48118460731560.

The previous prime is 72177725862127. The next prime is 72177725862173. The reversal of 72177725862147 is 74126852777127.

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

It is not a de Polignac number, because 72177725862147 - 2¹¹ = 72177725860099 is a prime.

It is a super-2 number, since 2×72177725862147² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72177725862127) 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 7 ways as a sum of consecutive naturals, for example, 3690372 + ... + 12568782.

It is an arithmetic number, because the mean of its divisors is an integer number (12029626771160).

Almost surely, 2^{72177725862147} is an apocalyptic number.

72177725862147 is a deficient number, since it is larger than the sum of its proper divisors (24059288307133).

72177725862147 is a wasteful number, since it uses less digits than its factorization.

72177725862147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11588273.

The product of its digits is 129077760, while the sum is 66.

The spelling of 72177725862147 in words is "seventy-two trillion, one hundred seventy-seven billion, seven hundred twenty-five million, eight hundred sixty-two thousand, one hundred forty-seven".