72150015811 has 2 divisors, whose sum is σ = 72150015812. Its totient is φ = 72150015810.

The previous prime is 72150015739. The next prime is 72150015823. The reversal of 72150015811 is 11851005127.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72150015811 - 2⁷ = 72150015683 is a prime.

It is not a weakly prime, because it can be changed into another prime (72150015611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36075007905 + 36075007906.

It is an arithmetic number, because the mean of its divisors is an integer number (36075007906).

Almost surely, 2^72150015811 is an apocalyptic number.

72150015811 is a deficient number, since it is larger than the sum of its proper divisors (1).

72150015811 is an equidigital number, since it uses as much as digits as its factorization.

72150015811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2800, while the sum is 31.

The spelling of 72150015811 in words is "seventy-two billion, one hundred fifty million, fifteen thousand, eight hundred eleven".