72204898531 has 2 divisors, whose sum is σ = 72204898532. Its totient is φ = 72204898530.

The previous prime is 72204898529. The next prime is 72204898537. The reversal of 72204898531 is 13589840227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72204898531 - 2¹ = 72204898529 is a prime.

It is a super-2 number, since 2×72204898531² (a number of 23 digits) contains 22 as substring.

Together with 72204898529, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (72204898537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36102449265 + 36102449266.

It is an arithmetic number, because the mean of its divisors is an integer number (36102449266).

Almost surely, 2^72204898531 is an apocalyptic number.

72204898531 is a deficient number, since it is larger than the sum of its proper divisors (1).

72204898531 is an equidigital number, since it uses as much as digits as its factorization.

72204898531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 72204898531 in words is "seventy-two billion, two hundred four million, eight hundred ninety-eight thousand, five hundred thirty-one".