72209593037 has 2 divisors, whose sum is σ = 72209593038. Its totient is φ = 72209593036.

The previous prime is 72209593033. The next prime is 72209593147. The reversal of 72209593037 is 73039590227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71585142916 + 624450121 = 267554^2 + 24989^2 .

It is a cyclic number.

It is not a de Polignac number, because 72209593037 - 2² = 72209593033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72209592982 and 72209593000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72209593033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36104796518 + 36104796519.

It is an arithmetic number, because the mean of its divisors is an integer number (36104796519).

Almost surely, 2^72209593037 is an apocalyptic number.

It is an amenable number.

72209593037 is a deficient number, since it is larger than the sum of its proper divisors (1).

72209593037 is an equidigital number, since it uses as much as digits as its factorization.

72209593037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 714420, while the sum is 47.

The spelling of 72209593037 in words is "seventy-two billion, two hundred nine million, five hundred ninety-three thousand, thirty-seven".