72423542051 has 8 divisors (see below), whose sum is σ = 85623892320. Its totient is φ = 59936724288.

The previous prime is 72423542039. The next prime is 72423542057. The reversal of 72423542051 is 15024532427.

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

It is not a de Polignac number, because 72423542051 - 2¹⁰ = 72423541027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72423542057) 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, 178382906 + ... + 178383311.

It is an arithmetic number, because the mean of its divisors is an integer number (10702986540).

Almost surely, 2^72423542051 is an apocalyptic number.

72423542051 is a deficient number, since it is larger than the sum of its proper divisors (13200350269).

72423542051 is a wasteful number, since it uses less digits than its factorization.

72423542051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356766253.

The product of its (nonzero) digits is 67200, while the sum is 35.

The spelling of 72423542051 in words is "seventy-two billion, four hundred twenty-three million, five hundred forty-two thousand, fifty-one".