72412378429 has 4 divisors (see below), whose sum is σ = 72475292160. Its totient is φ = 72349464700.

The previous prime is 72412378403. The next prime is 72412378439. The reversal of 72412378429 is 92487321427.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92487321427 = 587 ⋅157559321.

It is a cyclic number.

It is not a de Polignac number, because 72412378429 - 2¹⁵ = 72412345661 is a prime.

It is a super-3 number, since 3×72412378429³ (a number of 34 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72412378439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31455139 + ... + 31457440.

It is an arithmetic number, because the mean of its divisors is an integer number (18118823040).

Almost surely, 2^72412378429 is an apocalyptic number.

It is an amenable number.

72412378429 is a deficient number, since it is larger than the sum of its proper divisors (62913731).

72412378429 is a wasteful number, since it uses less digits than its factorization.

72412378429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62913730.

The product of its digits is 1354752, while the sum is 49.

The spelling of 72412378429 in words is "seventy-two billion, four hundred twelve million, three hundred seventy-eight thousand, four hundred twenty-nine".