72420722302 has 8 divisors (see below), whose sum is σ = 109323001656. Its totient is φ = 35979721752.

The previous prime is 72420722299. The next prime is 72420722329. The reversal of 72420722302 is 20322702427.

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

It is a super-2 number, since 2×72420722302² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 115319308 + ... + 115319935.

It is an arithmetic number, because the mean of its divisors is an integer number (13665375207).

Almost surely, 2^72420722302 is an apocalyptic number.

72420722302 is a deficient number, since it is larger than the sum of its proper divisors (36902279354).

72420722302 is a wasteful number, since it uses less digits than its factorization.

72420722302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230639402.

The product of its (nonzero) digits is 18816, while the sum is 31.

The spelling of 72420722302 in words is "seventy-two billion, four hundred twenty million, seven hundred twenty-two thousand, three hundred two".