53720381711 has 2 divisors, whose sum is σ = 53720381712. Its totient is φ = 53720381710.

The previous prime is 53720381669. The next prime is 53720381717. The reversal of 53720381711 is 11718302735.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53720381711 - 2¹⁴ = 53720365327 is a prime.

It is a super-2 number, since 2×53720381711² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53720381717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26860190855 + 26860190856.

It is an arithmetic number, because the mean of its divisors is an integer number (26860190856).

Almost surely, 2^53720381711 is an apocalyptic number.

53720381711 is a deficient number, since it is larger than the sum of its proper divisors (1).

53720381711 is an equidigital number, since it uses as much as digits as its factorization.

53720381711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 38.

The spelling of 53720381711 in words is "fifty-three billion, seven hundred twenty million, three hundred eighty-one thousand, seven hundred eleven".