72214364293 has 4 divisors (see below), whose sum is σ = 72266961708. Its totient is φ = 72161766880.

The previous prime is 72214364249. The next prime is 72214364309. The reversal of 72214364293 is 39246341227.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67955105124 + 4259259169 = 260682^2 + 65263^2 .

It is a cyclic number.

It is not a de Polignac number, because 72214364293 - 2¹³ = 72214356101 is a prime.

It is a super-2 number, since 2×72214364293² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72214364213) 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, 26296648 + ... + 26299393.

It is an arithmetic number, because the mean of its divisors is an integer number (18066740427).

Almost surely, 2^72214364293 is an apocalyptic number.

It is an amenable number.

72214364293 is a deficient number, since it is larger than the sum of its proper divisors (52597415).

72214364293 is a wasteful number, since it uses less digits than its factorization.

72214364293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52597414.

The product of its digits is 435456, while the sum is 43.

The spelling of 72214364293 in words is "seventy-two billion, two hundred fourteen million, three hundred sixty-four thousand, two hundred ninety-three".