72670676305 has 8 divisors (see below), whose sum is σ = 92334506472. Its totient is φ = 54716744448.

The previous prime is 72670676291. The next prime is 72670676333. The reversal of 72670676305 is 50367607627.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16787607489 + 55883068816 = 129567^2 + 236396^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 72670676305 - 2¹³ = 72670668113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427474482 + ... + 427474651.

It is an arithmetic number, because the mean of its divisors is an integer number (11541813309).

Almost surely, 2^72670676305 is an apocalyptic number.

It is an amenable number.

72670676305 is a deficient number, since it is larger than the sum of its proper divisors (19663830167).

72670676305 is a wasteful number, since it uses less digits than its factorization.

72670676305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854949155.

The product of its (nonzero) digits is 2222640, while the sum is 49.

The spelling of 72670676305 in words is "seventy-two billion, six hundred seventy million, six hundred seventy-six thousand, three hundred five".