72149350919 has 2 divisors, whose sum is σ = 72149350920. Its totient is φ = 72149350918.

The previous prime is 72149350913. The next prime is 72149350943. The reversal of 72149350919 is 91905394127.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72149350919 - 2¹² = 72149346823 is a prime.

It is a super-2 number, since 2×72149350919² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72149350913) by changing a digit.

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 as a sum of consecutive naturals, namely, 36074675459 + 36074675460.

It is an arithmetic number, because the mean of its divisors is an integer number (36074675460).

Almost surely, 2^72149350919 is an apocalyptic number.

72149350919 is a deficient number, since it is larger than the sum of its proper divisors (1).

72149350919 is an equidigital number, since it uses as much as digits as its factorization.

72149350919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 612360, while the sum is 50.

The spelling of 72149350919 in words is "seventy-two billion, one hundred forty-nine million, three hundred fifty thousand, nine hundred nineteen".