72201400787 has 2 divisors, whose sum is σ = 72201400788. Its totient is φ = 72201400786.

The previous prime is 72201400669. The next prime is 72201400811. The reversal of 72201400787 is 78700410227.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (78700410227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72201400787 - 2¹² = 72201396691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72201400787.

It is not a weakly prime, because it can be changed into another prime (72201408787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36100700393 + 36100700394.

It is an arithmetic number, because the mean of its divisors is an integer number (36100700394).

Almost surely, 2^72201400787 is an apocalyptic number.

72201400787 is a deficient number, since it is larger than the sum of its proper divisors (1).

72201400787 is an equidigital number, since it uses as much as digits as its factorization.

72201400787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43904, while the sum is 38.

The spelling of 72201400787 in words is "seventy-two billion, two hundred one million, four hundred thousand, seven hundred eighty-seven".