72611370149 has 2 divisors, whose sum is σ = 72611370150. Its totient is φ = 72611370148.

The previous prime is 72611370133. The next prime is 72611370193. The reversal of 72611370149 is 94107311627.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72605997025 + 5373124 = 269455^2 + 2318^2 .

It is a cyclic number.

It is not a de Polignac number, because 72611370149 - 2⁴ = 72611370133 is a prime.

It is a super-2 number, since 2×72611370149² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72611370199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36305685074 + 36305685075.

It is an arithmetic number, because the mean of its divisors is an integer number (36305685075).

Almost surely, 2^72611370149 is an apocalyptic number.

It is an amenable number.

72611370149 is a deficient number, since it is larger than the sum of its proper divisors (1).

72611370149 is an equidigital number, since it uses as much as digits as its factorization.

72611370149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 41.

The spelling of 72611370149 in words is "seventy-two billion, six hundred eleven million, three hundred seventy thousand, one hundred forty-nine".