72077026652779 has 2 divisors, whose sum is σ = 72077026652780. Its totient is φ = 72077026652778.

The previous prime is 72077026652759. The next prime is 72077026652821. The reversal of 72077026652779 is 97725662077027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72077026652779 - 2²⁹ = 72076489781867 is a prime.

It is a super-2 number, since 2×72077026652779² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (72077026652759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36038513326389 + 36038513326390.

It is an arithmetic number, because the mean of its divisors is an integer number (36038513326390).

Almost surely, 2^{72077026652779} is an apocalyptic number.

72077026652779 is a deficient number, since it is larger than the sum of its proper divisors (1).

72077026652779 is an equidigital number, since it uses as much as digits as its factorization.

72077026652779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217818720, while the sum is 67.

The spelling of 72077026652779 in words is "seventy-two trillion, seventy-seven billion, twenty-six million, six hundred fifty-two thousand, seven hundred seventy-nine".