1157720739853 has 2 divisors, whose sum is σ = 1157720739854. Its totient is φ = 1157720739852.

The previous prime is 1157720739803. The next prime is 1157720739887. The reversal of 1157720739853 is 3589370277511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 595247739529 + 562473000324 = 771523^2 + 749982^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1157720739853 is a prime.

It is a super-2 number, since 2×1157720739853² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1157720739803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578860369926 + 578860369927.

It is an arithmetic number, because the mean of its divisors is an integer number (578860369927).

Almost surely, 2^{1157720739853} is an apocalyptic number.

It is an amenable number.

1157720739853 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157720739853 is an equidigital number, since it uses as much as digits as its factorization.

1157720739853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11113200, while the sum is 58.

The spelling of 1157720739853 in words is "one trillion, one hundred fifty-seven billion, seven hundred twenty million, seven hundred thirty-nine thousand, eight hundred fifty-three".