72077382919 has 2 divisors, whose sum is σ = 72077382920. Its totient is φ = 72077382918.

The previous prime is 72077382899. The next prime is 72077382931. The reversal of 72077382919 is 91928377027.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72077382919 - 2⁷ = 72077382791 is a prime.

It is a super-2 number, since 2×72077382919² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72077382919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72077382959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36038691459 + 36038691460.

It is an arithmetic number, because the mean of its divisors is an integer number (36038691460).

Almost surely, 2^72077382919 is an apocalyptic number.

72077382919 is a deficient number, since it is larger than the sum of its proper divisors (1).

72077382919 is an equidigital number, since it uses as much as digits as its factorization.

72077382919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2667168, while the sum is 55.

The spelling of 72077382919 in words is "seventy-two billion, seventy-seven million, three hundred eighty-two thousand, nine hundred nineteen".