77540926700093 has 2 divisors, whose sum is σ = 77540926700094. Its totient is φ = 77540926700092.

The previous prime is 77540926699987. The next prime is 77540926700147. The reversal of 77540926700093 is 39000762904577.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54224563695289 + 23316363004804 = 7363733^2 + 4828702^2 .

It is a cyclic number.

It is not a de Polignac number, because 77540926700093 - 2¹² = 77540926695997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77540926702093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38770463350046 + 38770463350047.

It is an arithmetic number, because the mean of its divisors is an integer number (38770463350047).

Almost surely, 2^{77540926700093} is an apocalyptic number.

It is an amenable number.

77540926700093 is a deficient number, since it is larger than the sum of its proper divisors (1).

77540926700093 is an equidigital number, since it uses as much as digits as its factorization.

77540926700093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20003760, while the sum is 59.

The spelling of 77540926700093 in words is "seventy-seven trillion, five hundred forty billion, nine hundred twenty-six million, seven hundred thousand, ninety-three".