77900133119987 has 2 divisors, whose sum is σ = 77900133119988. Its totient is φ = 77900133119986.

The previous prime is 77900133119957. The next prime is 77900133120037. The reversal of 77900133119987 is 78991133100977.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77900133119987 - 2¹⁴ = 77900133103603 is a prime.

It is a super-2 number, since 2×77900133119987² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (77900133119957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38950066559993 + 38950066559994.

It is an arithmetic number, because the mean of its divisors is an integer number (38950066559994).

Almost surely, 2^{77900133119987} is an apocalyptic number.

77900133119987 is a deficient number, since it is larger than the sum of its proper divisors (1).

77900133119987 is an equidigital number, since it uses as much as digits as its factorization.

77900133119987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18003384, while the sum is 65.

The spelling of 77900133119987 in words is "seventy-seven trillion, nine hundred billion, one hundred thirty-three million, one hundred nineteen thousand, nine hundred eighty-seven".