738256135673 has 4 divisors (see below), whose sum is σ = 843721297920. Its totient is φ = 632790973428.

The previous prime is 738256135657. The next prime is 738256135679. The reversal of 738256135673 is 376531652837.

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: 376531652837 = 86293 ⋅4363409.

It is a cyclic number.

It is not a de Polignac number, because 738256135673 - 2⁴ = 738256135657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (738256135679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52732581113 + ... + 52732581126.

It is an arithmetic number, because the mean of its divisors is an integer number (210930324480).

Almost surely, 2^738256135673 is an apocalyptic number.

It is an amenable number.

738256135673 is a deficient number, since it is larger than the sum of its proper divisors (105465162247).

738256135673 is a wasteful number, since it uses less digits than its factorization.

738256135673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105465162246.

The product of its digits is 19051200, while the sum is 56.

The spelling of 738256135673 in words is "seven hundred thirty-eight billion, two hundred fifty-six million, one hundred thirty-five thousand, six hundred seventy-three".